v5.5.0

SteaMidra v5.5.0

Major UI Overhaul - New Modern Browser-Based Interface

What's new:

• Completely new modern interface built with QWebEngine
• Clean sidebar navigation with these tabs:
  • Home (game selector with auto-refresh)
  • Store (Hubcap manifest browser with grid/list view)
  • Library
  • Downloads (live progress)
  • Fix Game
  • Tools
  • Cloud Saves
  • Settings
• Tooltips, toast notifications, and floating log viewer on every tab

Full detailed changelog is in CHANGELOG.md