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/util/images/Gallery.tsx

@@ -41,16 +41,25 @@ export const GalleryItem: FC<GalleryItemProps> = ({
         delayPressIn={DELAY_PRESS_IN}
         onPress={() => onPress?.(index)}
         onPressIn={() => onPressIn?.(index)}
-        onLongPress={() => onLongPress?.(index)}>
+        onLongPress={() => onLongPress?.(index)}
+        accessibilityRole="button"
+        accessibilityLabel="View image"
+        accessibilityHint="">
         <Image
           source={{uri: image.thumb}}
           style={imageStyle}
           accessible={true}
           accessibilityLabel={image.alt}
+          accessibilityHint=""
+          accessibilityIgnoresInvertColors
         />
       </TouchableOpacity>
       {image.alt === '' ? null : (
-        <Pressable onPress={onPressAltText}>
+        <Pressable
+          onPress={onPressAltText}
+          accessibilityRole="button"
+          accessibilityLabel="View alt text"
+          accessibilityHint="Opens modal with alt text">
           <Text style={styles.alt}>ALT</Text>
         </Pressable>
       )}