Specifically updates dropdown search and user-search implementation,
although does affect all inputs.
Decouples breadcrum and select-style dropdown search toggles.
Addresses #2678
- Removed harsh theme color border between search and content.
- Prevented intermediate focus on list container to align arrow & tab
behaviour, and to get to content quicker.
- Moved Code-editor from vue to component.
- Updated popup code so it background click only hides if the click
originated on the same background. Clicks within the popup will no
longer cause it to hide.
- Added session-level history tracking to code editor.
- Updated editor, and other area, styles to look okay in dark mode.
- Used tinyMCE theme generator to create dark mode theme.
- Updated tinymce to latest 4x version.
