Bugfixes for Escape from Kettuloch

This update fixes two bugs that were introduced in the previous update, one of which was pretty major (the player had health beyond the displayed amount) and one of which was pretty minor (the footer taunted players about being foxes, despite that not yet being true). Sorry to all ~2133 people who had to deal with those issues!

I also marked the offline file as being compatible with Windows, Mac, Linux, and Android, which should allow people using the Itch.io desktop client to more reliably access the game. I'm not sure what causes the client to decide some files are ineligible to be installed, but some HTML games only work if the platform you're playing on has been selected.