Clearer player activity in the lobby

Compact game labels and a live activity counter now make it obvious when other players are already in matches.

• Game NPC labels are split across two shorter lines, with clearer JOIN, STARTING and IN GAME states.
• A display above the lobby spawn shows both the total number of players online and how many are currently in game queues or matches.
• Counts refresh every second and deduplicate players across active game rosters.