Getting ready for release

Very excited to be putting the finishing touches on this project.

Today I made the last bugfixes and final updates, getting it ready for release:

 * Make toast messages be highlighted.
 * Keep messages on the screen for longer.
 * Fix layout issue on small screens.
 * Implement on screen arrow buttons for mobile.

What I have left to do before release:

 * Update the documentation PDF.
 * Film more YouTube tutorials.

Super pumped about releasing this at the end of the week! On the weekend I'm going to do the Kenney Jam and use this boilerplate to make a roguelike game. \o/