* split data type handlers into multiple files
* return promise
* test register root as same entity as items
* add insert method to entity db
* redirect to new data type when selecting in options modal
* add options to modal name
* Update manifests.ts
* add margin to data type info view
* fix import
* update with models from server
* push new item to tree
* add eslint rule to enforce element suffix on elements
* remove fixer
* rename first round of elements
* add element to element class name
* add element suffix
* rename element
* add element to UmbControllerHost instead of interface
* update imports after merge
* remove fixable flag
* fix after merge