Packaging rework (#531)

* fix: get rid of title view jank on latest beta

* Count the number of installs for each plugin (#557)

* Bump aiohttp from 3.8.4 to 3.8.5 in /backend (#558)

* fix: include Decky version in request for index.js

This avoids the If-Modified-Since logic in aiohttp and ensures Steam doesn't cache old JS,
even if the timestamps are normalized.

* fix: clean up shellcheck warnings in act runner script

* fix: gitignore settings/

* fix: ensure state directories exist when running without the installer

* feat: determine root directory correctly when running from in-tree

* fix: fix typo in CI script

* refactor: build a proper Python package with poetry

* refactor: move decky_plugin under the poetry structure

There's no need to special case it anymore, just treat it like any other Python module.

* sandboxed_plugin: better fix, attempt 2

---------

Co-authored-by: AAGaming <aagaming@riseup.net>
Co-authored-by: Party Wumpus <48649272+PartyWumpus@users.noreply.github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

act/run-act.sh

@@ -1,26 +1,29 @@
-#!/bin/bash
+#!/usr/bin/env bash
+set -eo pipefail
 
 type=$1
 # bump=$2
 
 oldartifactsdir="old"
 
-parent_path=$( cd "$(dirname "${BASH_SOURCE[0]}")" ; pwd -P )
-cd "$parent_path"
+parent_path=$( cd "$(dirname "${BASH_SOURCE[0]}")" || exit ; pwd -P )
+cd "$parent_path" || exit
 
-artifactfolders=$(find artifacts/ -maxdepth 1 -mindepth 1 -type d)
-if [[ ${#artifactfolders[@]} > 0 ]]; then
-    for i in ${artifactfolders[@]}; do
-        foldername=$(dirname $i)
-        subfoldername=$(basename $i)
-        out=$foldername/$oldartifactsdir/$subfoldername-$(date +'%s')
-        if [[ ! "$subfoldername" =~ "$oldartifactsdir" ]]; then
-            mkdir -p $out
-            mv $i $out
-            printf "Moved "${foldername}"/"${subfoldername}" to "${out}" \n"
-        fi
-    done
-fi
+for i in artifacts/*; do
+    if [[ ! -d "$i" ]]; then
+        continue;
+    fi
+    subfoldername=$(basename "$i")
+
+    if [[ "$subfoldername" == "$oldartifactsdir" ]]; then
+        continue;
+    fi
+
+    out=artifacts/$oldartifactsdir/$subfoldername-$(date +'%s')
+    mkdir -p "$out"
+    mv "$i" "$out"
+    echo "Moved artifacts/${subfoldername} to ${out}"
+done
 
 cd ..
 
@@ -35,10 +38,10 @@ else
     printf "Options: 'release' or 'prerelease'\n"
 fi
 
-cd act/artifacts
+cd act/artifacts || exit
 
 if [[ -d "1" ]]; then
-    cd "1/artifact"
+    cd "1/artifact" || exit
     cp "PluginLoader.gz__" "PluginLoader.gz"
     gzip -d "PluginLoader.gz"
     chmod +x PluginLoader