When there are less players than the number in the settings game should not start

For example when it's a 4 players game and the 4th players disconnects moments before the host clicks on start game the game is starting with a bot as 4th player. It should have an error popop for the host to confirm that he intends to play with a bot as 4th player. Having to disable karma all the 3 players and create a new game is a hustle in these cases