Fix `aria-label` on the Share button (#3159)

It had the same one as the Like button for some reason

src/view/com/util/post-ctrls/PostCtrls.tsx

@@ -212,9 +212,7 @@ let PostCtrls = ({
             style={[styles.btn]}
             onPress={onShare}
             accessibilityRole="button"
-            accessibilityLabel={`${
-              post.viewer?.like ? _(msg`Unlike`) : _(msg`Like`)
-            } (${post.likeCount} ${pluralize(post.likeCount || 0, 'like')})`}
+            accessibilityLabel={`${_(msg`Share`)}`}
             accessibilityHint=""
             hitSlop={big ? HITSLOP_20 : HITSLOP_10}>
             <ArrowOutOfBox style={[defaultCtrlColor, styles.mt1]} width={22} />