* new themes and theme type updates
* update theme processing
port newer functionality from webapp
* update theme UI
including new svg-based thumbnail
* lint fixes
* update snapshots and tests
* update theme tile border approach
* remove unused path component
* remove old variable typo
* remove old variable type from theme type
* lint and snapshot updates
* update snapshots
* Add linter rules for import order and type member delimiters
* Remove unneeded group
* Group all app/* imports before the internal imports
* Move app/ imports before parent imports
* Separate @node_modules imports into a different group
* Substitute app paths by aliases
* Fix @node_modules import order and add test related modules
* Add aliases for types and test, and group import types
* Add widgets and interactive dialogs
* Update snapshots
* Updates per feedback and fix slash command
* Fix style
* Update styling
* Updates per feedback
* Updates per feedback
* More styling changes
* Remove extra space above message menu
