Use bool everywhere in mcard

[cadmic]

Part 1 of mcard cleanups. For things named toggle I'm not sure whether to use true/false or 0/1 (like an enum, I guess), since they do toggle == 1 a lot. Then again, the also do someFunctionReturningABool() == true a lot too so maybe that's just the style in this file.

[Yanis002]

I was confused by mCard.file.game.writtenBlocks but it must be an array to know which blocks are written or something like that so it makes sense it's a bool too