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/load-latest/LoadLatestBtn.web.tsx

@@ -23,7 +23,10 @@ export const LoadLatestBtn = ({
     <TouchableOpacity
       style={[pal.view, pal.borderDark, styles.loadLatest]}
       onPress={onPress}
-      hitSlop={HITSLOP}>
+      hitSlop={HITSLOP}
+      accessibilityRole="button"
+      accessibilityLabel={`Load new ${label}`}
+      accessibilityHint="">
       <Text type="md-bold" style={pal.text}>
         <UpIcon size={16} strokeWidth={1} style={[pal.text, styles.icon]} />
         Load new {label}

src/view/com/util/load-latest/LoadLatestBtnMobile.tsx

@@ -23,7 +23,10 @@ export const LoadLatestBtn = observer(
           },
         ]}
         onPress={onPress}
-        hitSlop={HITSLOP}>
+        hitSlop={HITSLOP}
+        accessibilityRole="button"
+        accessibilityLabel={`Load new ${label}`}
+        accessibilityHint={`Loads new ${label}`}>
         <LinearGradient
           colors={[gradients.blueLight.start, gradients.blueLight.end]}
           start={{x: 0, y: 0}}