Add better check for newgame timers in __check_bot_was_restarted

[e-caste]

It now correctly detects games that were being played by using the ingame timers (in bot_data and in the timers variable) discrepancy.

It throws an error when the bot is restarted and a game was in the newgame state. It should correctly detect this state as well.

Labeling as enhancement since it should be a rare error which happens only if the bot gets restarted, and even then, only once.