[ticket/12553] Right-to-left fixes.

- [x] Insert inline/delete buttons in attachment uploader should float left.
- [x] Links in last post column are not clickable.
- [ ] Contact icon is not aligned correctly.
- [x] Contact icons should float right.
- [ ] Notification dropdown opens to the right and thus appears partly offscreen.
- [ ] Live search suggestions should be on the right.
- [ ] Text in the ACP alerts should align right.
- [x] ® is cut off in logo.

Responsive:
- [ ] Forum name in ACP forum list should align right.
- [ ] "Collapsed" table cells are aligned to the left.

https://tracker.phpbb.com/browse/PHPBB3-12553