Finally! You can now close (or refresh) Lil' Bitty Things without losing data!

Now, when you close Lil' Bitty Things and come back (or refresh the tab), all your work is still there exactly as you left it! This is huge. One of the biggest reasons for this change is that my students will occasionally close their browser and log out at the end of close, but before they save what they're working on. Now, when that happens, their work will be waiting for them when they open it back up.

This is a feature I've wanted since day 1. Fortunately, implementing this was *extremely* easy in Godot, and I didn't even need different code between the web and desktop builds.