Improvements

• Add Idle for updating the UI asynchronously (#27)
• Add support for custom CSS (#29)
• Add type safe style classes
• Add new widget Picture (#23)
• Improve performance of @State
• Improve performance of entry rows
• Add modifier devel for window's devel style (#29)
• Add Flatpak manifest for demo app
• Deprecate frame(maxSize:) - use frame(maxWidth: instead
• Polish demo app

Bug Fixes

• Fix ComboRow not selecting value at initialization (#28)
• Fix crash when selecting a row at List's initialization
• Fix not compiling on Windows (#26)

Full Changelog: 0.2.5...0.2.6