feat: Color knobs

feat: Custom global properties

fix: `widgetbook` does not work with `flutter_screen_utils`

Issue: Widgetbook and GoRoute

Selfhosted Widgetbook

Wrong MediaQuery Size

It should be `class MockInviteesProvider extends Mock implements InviteesProvider {}` where `Mock` is imported from mocktail

What does the code you have written to create the mocked provider look like

I have made a mock provider but in my widget the actual provider is still a dependency Is it possible to switch this ```Provider.of(context);``` to the mock provider?

Is it possible to use Widgetbook to also create the full pages/screens and then use those screens in the main app?