Update base styles to match latest SDK #12839
Description
What would you like to be added:
The Uno.UI generic.xaml styles are largely outdated and should be updated to match latest Windows SDK. In addition, many existing Uno workarounds can now be removed
Why is this needed:
For which Platform:
- WebAssembly
- Android
- iOS
- macOS (AppKit)
- Mac Catalyst
- Skia
- WPF
- GTK (Linux)
- Linux Framebuffer
- Tizen
- Windows
- Build tasks
- Solution Templates