Small issues in the listings / code

[tomassedovic]

Do a git diff -w of this fork:

https://github.com/Kinrany/quicksilver-roguelike/commit/fd9900666cb9dd35c0ef14171748011ef49e7cb1

It's got some issues that @Kinrany fixed:

https://www.reddit.com/r/roguelikedev/comments/aowxzj/writing_a_roguelike_in_rust_for_the_desktop_and/egnuevv/