* Added basic navigation test for StandardCamera & SoundRecorder
* Abstracted camera nav buttons and used in SoundRecorder
* Show sounds in the MediaViewer
* Added sounds to ObsEdit, w/ MediaViewer support
* Ensure sounds get both uploaded and added to observations
* Local sound deletion
* Remote sound deletion
* Rudimentary and deeply unperformative sound visualization
Closes#869
* Add zustand to app
* Begin replacing ObsEditProvider with zustand for global state
* Use store and add tests
* Fix bugs
* Add test to check for deleted photos in StandardCamera
* Make sure evidence is only added to current observation; submit comment with ID on ObsDetail
* Fix ObsEditWithoutProvider tests
* Move store to where it's needed
* Fix tests
* Await evidence being added to obsPhotos from camera
* Add a note about slices to useStore
* Ensure layout of the PhotoCarousel photos doesn't change in delete mode
* Stop conflating screen-size layout differences with tablet layout differences
* Bugfix: deleting one photo in the StandardCamera removed all photos
* Animated rotation of rotatable elements on StandardCamera
* Ensure loading status shows while first photo is being taken
* Tried to remove some open handles and shore up some unhappy tests
