Testing PRs from within decky (#496)

* git no work so manually uploading files :(

* argh i wish git was working

* ok next time i'll make git work

* Update updater.py

* git please work next time this took ages without you

* fix me locales

* Update updater.py

* Update en-US.json

* Update updater.py

* Update updater.py

* i wish my python LSP stuff was working

* fix it

* Update updater.py

* Update updater.py

* Only show testing branch as an option if it is already selected

* Initial implementation for fetching the open PRs. Still need testing and a token to complete this.

* Wrong filter capitalization

* Fix a couple of typos in the python backend updater.

* Fix typos pt 3

* This should be the last one

* Prepend the PR version number with PR- to make it clearer that's the PR number.

* Update prettier to the latest version otherwise it will never be happy with the formatting.

* fix merge mistake

* fix pyright errors & type hint most new code

* fix strict pyright errors...

* not sure why my local linter didn't catch this

* Reimplement the logic between PR and artifact build to limit API calls

* Fix pyright errors

* use nightly.link for downloads

* remove accidental dollar sign

* fix various logical errors. the code actually works now.

* set branch to testing when user downloads a testing version

---------

Co-authored-by: Marco Rodolfi <marco.rodolfi@tuta.io>

frontend/src/components/settings/index.tsx

@@ -1,7 +1,7 @@
 import { SidebarNavigation } from 'decky-frontend-lib';
 import { lazy } from 'react';
 import { useTranslation } from 'react-i18next';
-import { FaCode, FaPlug } from 'react-icons/fa';
+import { FaCode, FaFlask, FaPlug } from 'react-icons/fa';
 
 import { useSetting } from '../../utils/hooks/useSetting';
 import DeckyIcon from '../DeckyIcon';
@@ -10,6 +10,7 @@ import GeneralSettings from './pages/general';
 import PluginList from './pages/plugin_list';
 
 const DeveloperSettings = lazy(() => import('./pages/developer'));
+const TestingMenu = lazy(() => import('./pages/testing'));
 
 export default function SettingsPage() {
   const [isDeveloper, setIsDeveloper] = useSetting<boolean>('developer.enabled', false);
@@ -39,6 +40,17 @@ export default function SettingsPage() {
       icon: <FaCode />,
       visible: isDeveloper,
     },
+    {
+      title: t('SettingsIndex.testing_title'),
+      content: (
+        <WithSuspense>
+          <TestingMenu />
+        </WithSuspense>
+      ),
+      route: '/decky/settings/testing',
+      icon: <FaFlask />,
+      visible: isDeveloper,
+    },
   ];
 
   return <SidebarNavigation pages={pages} />;