Add images to README
Fix sand-teleporting bug
Add box art
Prevent crashes when using large pen sizes
Add release rule
Add dist folder
Temporarily fix release builds

The strangest thing is happening. When using the -0z compilation flag,
the left mouse menu selection doesn't work, but the right mouse does.

To temporarily work around this issue, I'm using -O0 which leaves me
with a 8kb cart instead of a 5kb cart.

Fixes: https://todo.sr.ht/~colbyhub/pocket_dust-issues/27
Update Makefile to latest version
Add accurate cursor colors

Implements: https://todo.sr.ht/~colbyhub/pocket_dust-issues/26
Add play/pause functionality

Now we can control time itself. The implementation of this is not super
clean but there's not much time left on the clock.

Implements: https://todo.sr.ht/~colbyhub/pocket_dust-issues/15
Fix water from not spawning
Fix cursor alignment

Classic off-by-one.
Reduce water escapism
Fix stuck particle bug

I spent too much time trying to fix this.

Fixes: https://todo.sr.ht/~colbyhub/pocket_dust-issues/17
Remove redundant movement calls
Add better water

Lots of effort went into figuring out how to make more realistic water.
Look at the other "strange-water" branches for examples of lightening
and other strange effects.

Fixes: https://todo.sr.ht/~colbyhub/pocket_dust-issues/23
Add better lava flow

Now lava moves more slowly in all directions. This may have introduced
some water jank (see tidal waves).

Implements: https://todo.sr.ht/~colbyhub/pocket_dust-issues/21