* update data type handlers
* call correct method on repo
* introduce base menu item element
* wip register create and delete entity actions for data types
* stop event
* add folder request interceptor
* remove todo
* create interface for folder data source
* create interface for folder repository
* open create dialog in data type create action
* wip create folder modal
* add token
* clean up data type repo
* add has children prop
* add create folder modal
* add folder to temp data
* update import
* implement delete folder action
* add method to update folder
* update detail data source interface to follow backend models
* lint fixes
* move import fixes
* make generic folder modal
* add correct request model
* add put interceptor
* fix import
* update data type notification headline
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