Update notes for October 9

Downgrade Steam SDK version the game uses to avoid the incompatibilities a lot of people were having. We now only require SteamClient021, or Proton v9 or above.

Various minor fixes including:

• Fix R2 to speed up time not working after your first puzzle solve if you do skipping_stones first.

• Fix a spire remaining behind when the magistrate disappears after his monologue...

• Fix a camera issue with local area view and endpoint beams in wrapping levels

• Fix unlock and smash beam icons being visible in wrapping when they shouldn't be

• Fix z-fighting issue in promesst2

• Fix inability to undo while on a Rover sometimes

• Fix some bad checkpointing in a few Skipping Stones level

• Fix aspect ratio issues in a few levels

• Small art fixes to a number of levels

• Various fixes that seem too spoilery to put in patch notes...