* use instance setting for enabled target geolocations
* add validation for enabled geolocations setting
* a start on the UI?
* backend tweaks for UI
* proper crack at autocomplete component
* fix region targeting toggle
* e2e spec
* add migrations
* add countries gem?
* first pass at location model
* specs ✨
* add location to filtered ads query
* feature flag and nicer errors
* cosmetic fixes
* more tweaks (remove unnecessary index, add initializer)