v2.1.0-pre.1

What's Changed

• Make all icons centered by @enisn in #107
• Introduce StatefulContentView by @enisn in #108
• Introduce ButtonView by @enisn in #109
• Cascading styling by @enisn in #110
• TreeView arrow button enhancement by @enisn in #111
• Add 'Divider' to the docs by @enisn in #112
• Fix TreeView icon for mobile devices by @enisn in #113
• Cascading StyleClass by @enisn in #114
• Add container styles by @enisn in #115

Full Changelog: v2.0.0...v2.1.0-pre.1