fix(bazaar): add NVIDIA workaround

[ledif]

Pulling in ublue-os/bazzite#2859.

[ledif]

This seems to properly patch the .desktop file.

❯ podman run --rm localhost/bluefin-nvidia-open:latest cat /usr/share/applications/io.github.kolunmi.Bazaar.desktop
[Desktop Entry]
Name[cs]=Bazaar
Name[fr]=Bazaar
Name[ru]=Bazaar
Name=Bazaar
Comment=Add, remove or update flatpak software on this computer
Exec=env GSK_RENDERER=opengl bazaar window --auto-service
Icon=io.github.kolunmi.Bazaar
Terminal=false
Type=Application
Categories=Utility;
Keywords[cs]=GTK;Systém;SprávceBalíčků;Discover;Flatpak;Software;Store;
Keywords[fr]=GTK;Système;GestionnaireDePaquets;Discover;Flatpak;Logiciel;Store;
Keywords[ru]=GTK;Система;УправлениеПакетами;Discover;Flatpak;Приложения;Магазин;
Keywords=GTK;System;PackageManager;Discover;Flatpak;Software;Store;
StartupNotify=true

[Copilot]

Pull Request Overview

Adds a workaround in the base build script to ensure the Bazaar desktop entry uses OpenGL rendering on NVIDIA systems.

• Detects image-flavor set to nvidia via jq and grep
• Applies a sed command to prepend GSK_RENDERER=opengl to the Bazaar Exec line

Comments suppressed due to low confidence (1)

build_files/base/18-workarounds.sh:30

• Consider adding or updating automated tests for this script to verify that the NVIDIA workaround correctly updates the desktop entry when image-flavor is nvidia.

# Workaround for Bazaar on NVIDIA systems