MDLC01

Makes the game mode switcher (F3+F4) never preselect Spectator, and enables it even without operator permissions.

Fixes MC-121278, making Ctrl+A and other keyboard shortcuts work on non-QWERTY keyboard layouts.

Makes text more pleasant to select by improving the "move by word" feature (Ctrl+← and Ctrl+→).

Moves the chat above the armor bar.