Fix overflow on posts (#4899)

* overflow posts, via contentHider

* margin->padding for a bit more leeway

* overflow notifications

* overflow on header

* revert from contenthider, put on text in all places

* fix zalgo text in handle in composer

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Co-authored-by: Samuel Newman <10959775+mozzius@users.noreply.github.com>

src/view/com/post-thread/PostThreadItem.tsx

@@ -742,6 +742,7 @@ const styles = StyleSheet.create({
     flexWrap: 'wrap',
     paddingBottom: 4,
     paddingRight: 10,
+    overflow: 'hidden',
   },
   postTextLargeContainer: {
     paddingHorizontal: 0,