[Feature] Implement internazionalization for Decky Loader (#361)

* First iteration for internationalization of the loader

* First iteration for internationalization of the loader

* Cleanup node mess

* Cleanup node mess pt2

* Additional touches

* Latest decky changed merged into i18n and updated translation.

* Styling fixes

* Initial backend hosting implementation

* Added correct url path of the loopback server.

* Added correct url path of the loopback server.

* Some better namespaced text.

* Added whitelist for locales path.

* Refactor languages and fix hooks logic bugs.

* Small typo in language translation structure.

* Working backend, automatically swtich languages with steam and language fixes.

* Fix to languages

* Key fixes

* Additional language fixes.

* Additional json changes

* Final text revision and added a vscode tasks to automatically extract text from code.

* Typo in the middleware

* Remove unused imports

* Cleanup whitespaces.

* Import changes

* Revert "Import changes"

This reverts commit 8e8231950f.

* Update index.d.ts

* Clean up unused imports

* Delete pnpm-lock.yaml

* Update rollup.config.js

* Update PluginInstallModal.tsx

* Update index.tsx

* Update plugin-loader.tsx

* Update plugin-loader.tsx

* Revert "Delete pnpm-lock.yaml"

This reverts commit 3a39f36f21.

* Additional strings reworks.

* Fixes for issues coming from github merge.

* Fixes for master

* Styling fixes

* Styling pt2

* Missed a few strings in master,

* Styling fixes

* Additional master merge fixes.

* Final cleanup and adaptation to master.

* Final empty language cleanup and few string added

* Small changes to italian translation

* Disabled translation on a few components inside plugin-loader for missing react hooks.

* Fixed passing tag to translation.

* Disable debug output for reducing console spam.

* Return correct content type

* Small italian language change

* Added support for country code

* Fixed missing translation for uninstall popup.

* Fix class name shenanigans for  toast notification

* Update dependencies

* Fixed github workflow to include the new locales folder

* Update dependencies to latest version (unless it's React) and fixed the new small errors that cropped up

* Missed a file name change

* Updated dev dependencies to latest version

* Missed a few dev dependencies

* Revert "Update dependencies to latest version (unless it's React) and fixed the new small errors that cropped up"

Messed up merge with a different main branch

* Messed up deletion of rollup config.

* Fix broken pnpm lock file

* Missed a localized string during the merge

* Fixed a parameter mistake in the uninstall text parameter

* Fix pnpm random issues

* Small italian language tweaks

* Fix wrong parameter passed to the uninstall function call

* Another fix on a wrong function parameter

* Additional translation text on the store and branch selection channels

* Changed the default type passed to map to being able to index the two arrays.

* Reverted and reworked the last changes

* Distinguish events in UI for installing vs reinstalling plugins

* Additional fixes for reinstall prompt

* Revert the use of intevalPlural since the parser doesn't seem to support that.

* Missed a routing path in the backend

* Small bugfixes

* Small fixes

* Correctly adding the parameter to the request headers.

* Refactoring of the UI popup modal

* Fix pnpm shenanigans

* Final fixes for the install UI localization

* Clean up unnedeed backend code

* Small rework on text selection.

* Cleaned up parser configuration

* Removed extracttext dependency to pnpmsetup

* Merged translation and cleaned up parser

* Fixed JSON structure after manual merge.

* Added translation to the file picker

* Revert changes to PluginInstallModal

* Reworked the text modal for the final time

* Missed the proper linted text

* Missed the backend change

* Final branch cleanup

* Fixed small translation bleeding

Caused from the manual merge of _old.json files.

* fix extra space in browser.py

* fix extra newline in plugin-loader.tsx

* Cleanup i18next-parser.config.mjs

* Update plugin-loader.tsx

* Cleanup language files

* Better labeling of text

* Fixed language typos in BranchSelect

* Fixed language typos in StoreSelect

* Cleanup plugin-loader.tsx from unused imports

* Removed the path bypass since I'm using authentication from the frontend.

* Reimplemented this component as a functional component.

* Updated dependencies and lockfile

* Removed static route from main.py

Already handled in loader.py

* Small italian coherency fixes

* Fix small typography fixes on plugin name uninstall

* Fixed italian typo on removal popup

* Reenabled manual escaping value in i18next

* Set to fallback to the default language if the string in the JSON file is empty.

* Fixed pnpm wankery

* Added a missed italian text translation string

---------

Co-authored-by: AAGaming <aa@mail.catvibers.me>

frontend/src/components/store/Store.tsx

@@ -9,6 +9,7 @@ import {
   findModule,
 } from 'decky-frontend-lib';
 import { FC, useEffect, useMemo, useState } from 'react';
+import { useTranslation } from 'react-i18next';
 
 import logo from '../../../assets/plugin_store.png';
 import Logger from '../../logger';
@@ -25,6 +26,8 @@ const StorePage: FC<{}> = () => {
     return false;
   });
 
+  const { t } = useTranslation();
+
   useEffect(() => {
     (async () => {
       const res = await getPluginList();
@@ -54,13 +57,13 @@ const StorePage: FC<{}> = () => {
             }}
             tabs={[
               {
-                title: 'Browse',
+                title: t('Store.store_tabs.title'),
                 content: <BrowseTab children={{ data: data }} />,
                 id: 'browse',
                 renderTabAddon: () => <span className={TabCount}>{data.length}</span>,
               },
               {
-                title: 'About',
+                title: t('Store.store_tabs.about'),
                 content: <AboutTab />,
                 id: 'about',
               },
@@ -73,10 +76,12 @@ const StorePage: FC<{}> = () => {
 };
 
 const BrowseTab: FC<{ children: { data: StorePlugin[] } }> = (data) => {
+  const { t } = useTranslation();
+
   const sortOptions = useMemo(
     (): DropdownOption[] => [
-      { data: 1, label: 'Alphabetical (A to Z)' },
-      { data: 2, label: 'Alphabetical (Z to A)' },
+      { data: 1, label: t('Store.store_tabs.alph_desc') },
+      { data: 2, label: t('Store.store_tabs.alph_asce') },
     ],
     [],
   );
@@ -105,11 +110,11 @@ const BrowseTab: FC<{ children: { data: StorePlugin[] } }> = (data) => {
               width: '47.5%',
             }}
           >
-            <span className="DialogLabel">Sort</span>
+            <span className="DialogLabel">{t("Store.store_sort.label")}</span>
             <Dropdown
-              menuLabel="Sort"
+              menuLabel={t("Store.store_sort.label") as string}
               rgOptions={sortOptions}
-              strDefaultLabel="Last Updated (Newest)"
+              strDefaultLabel={t("Store.store_sort.label_def") as string}
               selectedOption={selectedSort}
               onChange={(e) => setSort(e.data)}
             />
@@ -122,11 +127,11 @@ const BrowseTab: FC<{ children: { data: StorePlugin[] } }> = (data) => {
               marginLeft: 'auto',
             }}
           >
-            <span className="DialogLabel">Filter</span>
+            <span className="DialogLabel">{t("Store.store_filter.label")}</span>
             <Dropdown
-              menuLabel="Filter"
+              menuLabel={t("Store.store_filter.label")}
               rgOptions={filterOptions}
-              strDefaultLabel="All"
+              strDefaultLabel={t("Store.store_filter.label_def")}
               selectedOption={selectedFilter}
               onChange={(e) => setFilter(e.data)}
             />
@@ -136,7 +141,7 @@ const BrowseTab: FC<{ children: { data: StorePlugin[] } }> = (data) => {
       <div style={{ justifyContent: 'center', display: 'flex' }}>
         <Focusable style={{ display: 'flex', alignItems: 'center', width: '96%' }}>
           <div style={{ width: '100%' }}>
-            <TextField label="Search" value={searchFieldValue} onChange={(e) => setSearchValue(e.target.value)} />
+            <TextField label={t("Store.store_search.label")} value={searchFieldValue} onChange={(e) => setSearchValue(e.target.value)} />
           </div>
         </Focusable>
       </div>
@@ -151,11 +156,11 @@ const BrowseTab: FC<{ children: { data: StorePlugin[] } }> = (data) => {
               maxWidth: '100%',
             }}
           >
-            <span className="DialogLabel">Sort</span>
+            <span className="DialogLabel">{t('Store.store_sort.label')}</span>
             <Dropdown
-              menuLabel="Sort"
+              menuLabel={t('Store.store_sort.label') as string}
               rgOptions={sortOptions}
-              strDefaultLabel="Last Updated (Newest)"
+              strDefaultLabel={t('Store.store_sort.label_def') as string}
               selectedOption={selectedSort}
               onChange={(e) => setSort(e.data)}
             />
@@ -165,7 +170,11 @@ const BrowseTab: FC<{ children: { data: StorePlugin[] } }> = (data) => {
       <div style={{ justifyContent: 'center', display: 'flex' }}>
         <Focusable style={{ display: 'flex', alignItems: 'center', width: '96%' }}>
           <div style={{ width: '100%' }}>
-            <TextField label="Search" value={searchFieldValue} onChange={(e) => setSearchValue(e.target.value)} />
+            <TextField
+              label={t('Store.store_search.label')}
+              value={searchFieldValue}
+              onChange={(e) => setSearchValue(e.target.value)}
+            />
           </div>
         </Focusable>
       </div>
@@ -192,6 +201,8 @@ const BrowseTab: FC<{ children: { data: StorePlugin[] } }> = (data) => {
 };
 
 const AboutTab: FC<{}> = () => {
+  const { t } = useTranslation();
+
   return (
     <div
       style={{
@@ -216,7 +227,7 @@ const AboutTab: FC<{}> = () => {
       />
       <span className="deckyStoreAboutHeader">Testing</span>
       <span>
-        Please consider testing new plugins to help the Decky Loader team!{' '}
+        {t('Store.store_testing_cta')}{' '}
         <a
           href="https://deckbrew.xyz/testing"
           target="_blank"
@@ -227,13 +238,10 @@ const AboutTab: FC<{}> = () => {
           deckbrew.xyz/testing
         </a>
       </span>
-      <span className="deckyStoreAboutHeader">Contributing</span>
-      <span>
-        If you would like to contribute to the Decky Plugin Store, check the SteamDeckHomebrew/decky-plugin-template
-        repository on GitHub. Information on development and distribution is available in the README.
-      </span>
-      <span className="deckyStoreAboutHeader">Source Code</span>
-      <span>All plugin source code is available on SteamDeckHomebrew/decky-plugin-database repository on GitHub.</span>
+      <span className="deckyStoreAboutHeader">{t('Store.store_contrib.label')}</span>
+      <span>{t('Store.store_contrib.desc')}</span>
+      <span className="deckyStoreAboutHeader">{t('Store.store_source.label')}</span>
+      <span>{t('Store.store_source.desc')}</span>
     </div>
   );
 };