UI: Restore FluentAvaloniaUI package, disable animations on app initialization
Restore the FluentAvaloniaUI package and disable animations on app initialization. This is in contrast to previously using a forked version of FluentAvalonia to disable animations.
- Avalonia's built-in color picker is now used when selecting a firmware avatar
- Update Avalonia to 11.3.11, Svg.Controls.Avalonia group to 11.3.9.2, FluentAvalonia to 2.5.0