Allow showcase for other frameworks and platforms.

Add TSDoc to component props. Spinners now display activated up/down buttons as well as maskedtextinput toggle buttons.

Update button colors, as well as cursor for menumultiselect.

Use old tests for components.

Use the font on the current page for input elements.

Manage props directly and fix some linting errors across all categories.

Define all categories presently implemented.

Start separating trivial components to their own categories outside the
kitchen sink package.