Added a document to try to define things.
Updated the loading so components are registed dynamically.
Added some standardised ways to reference other elems & define options
- Changed default focus styles
- Updated dropdowns with keyboard navigation
- Updated modals with esc exiting
- Added accessibility attirbutes where needed
- Made many more elements focusable
- Updated hover effects of many items to also apply when focused within
Related to #1320 and #1198
