feat: track OpenRGB single-instance fix and RQuickShare desktop files

Adds a headless OpenRGB autostart entry plus a launcher wrapper that
focuses the existing GUI window instead of spawning a duplicate
instance, and tracks the customized RQuickShare autostart/launcher
desktop entries.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

.config/autostart/RQuickShare.desktop

@@ -0,0 +1,8 @@
+[Desktop Entry]
+Type=Application
+Version=1.0
+Name=RQuickShare
+Comment=RQuickSharestartup script
+Exec=/usr/bin/rquickshare 
+StartupNotify=false
+Terminal=false