FIXED
* Fetching coordinates while offline
* Buttons should remain the same in dark mode
* Delete most recently-created obs
* Adding identifications from Explore
* Remove upload button from Explore grid view
* Increased pressable area of ObsEdit back button
* LocationPicker Current location button zooms as well as pans

UPDATED
* Show loading indicator at the end of results in Explore
* Style of "unknown" text for unidentified ObsDetail
* Obs deleted elsewhere should get deleted in app on sync
