Additionally, add editor styles to have the editor match the rendered
frontend.

- Add hover state to remove button on chip layout.
- Update disabled styles to remove button in both layouts (mainly relevant
to the editor view).

Set hover states to shades of grey. Also set chip color and text to
match selected text color of the block.

Since we're moving the remove button in the list view from the last
child node to the first child node, we need to adjust the expected order
of the active filter item text.