React Native accessibility (#539)

* React Native accessibility

* First round of changes

* Latest update

* Checkpoint

* Wrap up

* Lint

* Remove unhelpful image hints

* Fix navigation

* Fix rebase and lint

* Mitigate an known issue with the password entry in login

* Fix composer dismiss

* Remove focus on input elements for web

* Remove i and npm

* pls work

* Remove stray declaration

* Regenerate yarn.lock

---------

Co-authored-by: Paul Frazee <pfrazee@gmail.com>

src/view/com/modals/Confirm.tsx

@@ -66,7 +66,12 @@ export function Component({
         <TouchableOpacity
           testID="confirmBtn"
           onPress={onPress}
-          style={[styles.btn]}>
+          style={[styles.btn]}
+          accessibilityRole="button"
+          accessibilityLabel="Confirm"
+          // TODO: This needs to be updated so that modal roles are clear;
+          // Currently there is only one usage for the confirm modal: post deletion
+          accessibilityHint="Confirms a potentially destructive action">
           <Text style={[s.white, s.bold, s.f18]}>Confirm</Text>
         </TouchableOpacity>
       )}