(Mac) Fixed invisible bots bug on Mac

AI editor: fixed escape shortcut not always working when node editor panel is opened

AI editor: unified AI size computation (now always only counts linked actions and conditions)

AI editor: now counts executable nodes in each sub-AIs (even if there's several sub-AIs pointing to the same AI)

Domination: fixed neutralized base effect triggered even when base wasn't captured by a player before

Game: fixed mousewheel zoom not working after clicking a button

Multiplayer: improved play button label (shows game mode)

Multiplayer: fixed private match play button behavior

Team setup: added current game mode in screen title

Tutorial: fixed "basic training first" message appearing even when having completed basic training

Tutorial: fixed "sub-AIs" mission locked after creating the first sub-AI node

Stats: fixed campaign leaderboards

Localization: updated translations