Allow HTML in tooltip

`t()` is already sanitizing content by passing it through DOMPurify, this leads here to the problem that stuff is sanitized multiple times.

Signed-off-by: Lukas Reschke <[email protected]>

settings/js/users/users.js

@@ -126,7 +126,8 @@ var UserList = {
 			delay: {
 				show: 100,
 				hide: 0
-			}
+			},
+			html: true
 		});
 		if (user.quota === 'default') {
 			$quotaSelect