v0.1.0 of flexible_tab_bar

A beautifully animated, flex-based tab bar for Flutter. Active tabs expand, inactive tabs compact — with icons, labels, optional count badges, and smooth transitions. Changelog excerpt: - Initial release. - FlexibleTabBarwidget with animated expand/compact behavior. - FlexibleTabdata model with label, icon, and optional count. - Support for custom colors, dividers, badges, and animation settings. - alwaysShowLabeloption for always-visible tab labels.