Fix lobby refresh crash and add client notifications

[lmaosssdll]

Client-only fixes and QoL additions:

• Initialize LobbyLayer UI pointers to avoid invalid reads in refresh.
• Rebuild the player list safely during lobby updates.
• Allow clicking player names to open their GD profile.
• Show notifications for lobby joins/leaves and incoming chat messages.
• Display lobby settings (turns and minutes per turn) in the lobby and public lobby list.

Note: local build currently stops on an existing dependency include issue in SwapManager.cpp (cvolton.level-id-api/include/EditorIDs.hpp), unrelated to these client UI changes.