Update swift-uikit workflow to use xcbeautify

Build UIKitBackend in CI (#119)

Update GitHub Pages documentation site to '70fc5dad'.

Implement Menu in UIKitBackend (#118)

Update GitHub Pages documentation site to '1da7e293'.

Support secondary tap and long press gestures (#117)

Cache keyboard toolbar items on update (#115)

Update GitHub Pages documentation site to 'd835410b'.

Add keyboardToolbar modifier and extensible environment values (#114)

Update GitHub Pages documentation site to 'fd4f2969'.

Gtk3Backend: Re-scale images when window changes DPI (changing monitors)

Fix basic AppKitBackend layout test in CI (#112)

Standardize AppKitBackend CI rendering env's dpi and color space

Always run snapshot upload (to see snapshot on fail)

Snapshot view to debug UI tests in CI

Actually re-enable tests in CI

Add basic AppKitBackend layout test, re-enable tests in CI

Fix Linux and macOS CI workflows

Update GitHub Pages documentation site to '95e5b871'.

Clean up documentation

Update GitHub Pages documentation site to 'd5010dfe'.

Add Gtk3Backend to macOS and Linux CI, fix Windows CI

Update Windows GH Actions workflow to 6.0 (requires @retroactive)

Attempt to fix Windows CI (with ctreffs' fix for sbun's CI)

Update GitHub Pages documentation site to 'ad6a6534'.

Update Quick Start guide

Update GitHub Pages documentation site to 'a2a0180'.

Remove empty QtBackend docs

Update docs with more usage examples and cross-links, update README