Confirmed correct layout in RTL mode.
I experimented with adding a tooltip as well, as suggested in
https://forums.ankiweb.net/t/anki-23-12-beta/37771/82, but it's
confusing as we already change the mouse cursor/underline when the user
hovers over a label. Given the help text universally starts with
"affects the entire collection", I think that's good enough.
