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/lightbox/ImageViewing/components/ImageItem/ImageItem.ios.tsx

@@ -127,7 +127,8 @@ const ImageItem = ({
         <TouchableWithoutFeedback
           onPress={doubleTapToZoomEnabled ? handleDoubleTap : undefined}
           onLongPress={onLongPressHandler}
-          delayLongPress={delayLongPress}>
+          delayLongPress={delayLongPress}
+          accessibilityRole="image">
           <Animated.Image
             source={imageSrc}
             style={imageStylesWithOpacity}