EverythingRL 005: Tiny fix update

Hey folks, just a tiny bugfix release this time. Errors from the AI are handled better, and the web build is smaller and maybe faster now. The main menu also displays the version number.

As usual, previous versions may be downloaded from GitHub or played at e.g. https://pfe.io/everythingrl/004/ or https://pfe.io/everythingrl/7drl/