- boring cleanup:
- cleaned some of the positioning code that places icons and text on thumbnails, removing hardcoded numbers and letting custom icons position better
- cleaned some import url tracking, checking, and association code
- refactored profile mode and query planner mode switching up out of UI code into the controller
- added a hefty unit test to test that siblings and parents are transitively applied to mappings correctly for files outside and inside specific file services, and for tag sync and the normal tag pipeline
- refactored some database file maintenance code to decouple the queue from the worker

next week

I will try to focus entirely on the bug reports on the github issue tracker.