Post-jam fixes

I finally got around to doing everything I didn't have time for during the jam. No big updates to the writing or anything like that, but lots of quality-of-life stuff:

- Widescreen support

- Mobile version (bad)

- Wiggly letters are better-behaved

- Re-ordered levels (more geography, less cheese-ology)

- Small tweaks to make things more consistent/fair/interesting, such as "trout" -> "rainbow trout"

- A certain level is now forgiving.