Do not go again to structure page

Signed-off-by: Michal Čihař <michal@cihar.com>
Disable menu resizer once we need full menu

Clicking/Moving mouse over More link does not work reliably (sometimes
expanded menu disappears before we click on it's items). Hopefully
this approach will be better.

Signed-off-by: Michal Čihař <michal@cihar.com>