v0.1.0-beta.1 of fossui

An open-source Flutter UI library, inspired by Cal.com's design system. Themed from one source, accessible, one import. Changelog excerpt: First component release. Everything ships from a single import 'package:fossui/fossui.dart';. ### Theming - Token system as a ThemeExtension: FossThemeDatawith light and dark defaults, six token bundles (colors, typography, radii, spacing, shadows, motion), a FossThemewidget for non-Material apps, and the context.fossThemeaccessor. ### Components - Buttons and inputs: FossButton(with an icon-only variant), FossTextField, FossCheckbox, FossRadio, FossSwitch, FossSlider. [...]