* Write some failing navigation tests for MyObs navigation
* Add one more failing test to check for empty screen after all obs are deleted
* Update what happens on blur
* Changes to focus effect
* Revert "Changes to focus effect"
This reverts commit c779504cdf.
* Test: toolbar status reset when user leaves screen
* Unmock useFocusEffect in Jest; fix tests
* Minor nav mocking updates
* Fix import
* Customize back button; move icon assets into our image dir
* Fix ContextHeader with updated back button
* Fix styling around back buttons
* Fix taxon details header
* Test fix
* Fix signed in e2e test