fixes and improved QoL
- starting and ending game happens in interact menu of the board, not the mountable mat
- updating score timer happens when you step on and off mat, so stepping off pauses the timer and doesnt ruin leaderboard run
- fixed scoring issue on winning turn
- added game over panel to score panel, otherwise there was no indication a game was done
- fixed UI to show loaderboard time instead of scoring (as scoring is now in world)
- mounting/dimounting sends network update to board, so it can display changes on clients
- added player name to score cards
- fix playerdata states not being set properly