Sort- and refresh-buttons for serverlist in mainmenu

[hajo]

The list of servers in the mainmenu in not sorted in any useful manner,
except 'favorites on top'.
It would be nice to have buttons to sort the list by ip / servername / creative-mode etc.

Also, I get the impression that the number of players in the serverlist is often out-of-date.
E.g. the number of displayed current users is well under the maximum,
but when connecting, I get an error "too many users".

So, a button to refresh the date from the selected server would be useful.

Also, a field to enter a search-string...

[red-001]

It's possible to search both the serverlist and the advance settings in latest dev

[BBmine]

Sometimes, the server has "reserved slots", meaning that it saves spots for those "special people". For example, Cash's World has slots reserved for ADMIN, maikerumine, 843jdc, and Asia14. This list may be outdated/fake news, but you get the idea. So it might say 30 players max, but it can only have 26 "normal" players.