Refactor instance UI and update version to 0.0.20b7 and worksflow fixes

- Renamed QComboBox in instance.ui to versionsComboBox for clarity.
- Updated fallback version in __init__.py to 0.0.20b7.
- Improved docstrings and comments in app.py and other files for better readability.
- Added path expansion functionality in app_context.py to handle user           python -m pyproject-appimage
preferences.
- Refactored user preference methods in pref.py to use camelCase for consistency.
- Enhanced instance management and downloader logic in instance_manager.py and downloader.py.
- Fixed various formatting issues across multiple files for better code style adherence.
- Updated the lock file to reflect the new version 0.0.20a7.
- Fixed multiples workflows

.github/workflows/nightly.yml

@@ -4,7 +4,6 @@ on:
   push:
     branches:
       - dev
-
 permissions:
   contents: write
  
@@ -56,8 +55,8 @@ jobs:
         uses: Minionguyjpro/Inno-Setup-Action@v1.2.8
         with:
           path: packages\windows\nigthly.iss
-          options: '/O+ /F"LCE_Qt_Launcher_Windows_Nigthly_Setup"'
-      
+          # HACK : temporaly removed the filename to see if the installer workflow work
+
       - name: Upload Artifact
         uses: actions/upload-artifact@v7.0.1
         with:
@@ -66,17 +65,18 @@ jobs:
 
   # --- JOB 3 : Making Arch Linux Packages ---
   build_arch_package:
+      name : "Build Arch Packages"
       runs-on: ubuntu-latest
       container:
         image: archlinux
         options: --privileged
       steps: 
       - uses: actions/checkout@v6.0.2
-      - uses: actions/setup-python@v6.2.0
       - name: Build Arch Linux package
         uses: FFY00/build-arch-package@v1
         with:
-          PKGBUILD: packages/linux/nigthly/PKGBUILD
+          PKGBUILD: ${{ github.workspace }}packages/linux/nigthly/PKGBUILD # HACK : test to see if it will work
+
       - name: Upload Artifact
         uses: actions/upload-artifact@v7.0.1
         with:
@@ -94,11 +94,14 @@ jobs:
         with:
           python-version: "3.12"
           cache: 'pip'
+
       - name: Install dependencies
         run: |
           python -m pip install  --upgrade pip
-          pip install . pyproject-appimage
+          pip install pyproject-appimage
+          pip install . 
           python -m pyproject-appimage 
+
       - name: Upload Artifact
         uses: actions/upload-artifact@v7.0.1
         with: