* added backend for shopping list label config
* updated codegen
* refactored shopping list ops to service
removed unique contraint
removed label settings from main route/schema
added new route for label settings
* codegen
* made sure label settings output in position order
* implemented submenu for label order drag and drop
* removed redundant label and tweaked formatting
* added view by label to user preferences
* made items draggable within each label section
* moved reorder labels to its own button
* made dialog scrollable
* fixed broken model
* refactored labels to use a service
moved shopping list label logic to service
modified label seeder to use service
* added tests
* fix for first label missing the tag icon
* fixed wrong mapped type
* added statement to create existing relationships
* fix restore test, maybe
