Content update: bots also die!

Content update at last after improving playability.

The big change this time: bots can be damaged and die, turning into wrecks.

The passive (and overly verbose) tutorial has been removed in favor of a tutorial task list in-game.

A bunch more changes, all of which can be found in the release notes: https://github.com/pignales/bidles/releases/tag/v2023-08-15