* 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
* Ensure isFirstRow prop is set on first row
* Determine maxPreviewColumns on mount
* Fix expand button offset on Android
* Fix moreBelow gradient
* Show right gradient when columns are sliced
* Fix moreRight conditions
* Preview markdown table as 5x5 max
* Make linter happy
* Determine max columns from device width
* Add snapshot test
* Use Dimensions and update unit tests
* Remove async
