Enhancements

• Added Tahoe Abstract and Golden Gate Abstract themes
• Updated to .NET 10 which enables dark mode across entire application (#553)
• Rewrote theme preview renderer to be more lightweight by using Skia framework (#672)
• Added Lithuanian translation (thanks Matas)

Bug Fixes

• Reduced impact on Windows startup time (#645)
• Fixed error when applying "None" wallpaper theme (#652)
• Fixed wallpaper not always refreshing when PC resumes from sleep (#657)
• Fixed COMException that could happen when PC resumes from sleep (#680)
• Fixed IndexOutOfRangeException that could occur when wallpaper changes at night in locations that don't get dark (#686)