Delete .shadow-cljs/build and rebuild to clear caching errors

I fucked up then fixed Jacek’s Cheffy app in four ways:

I unindented, renamed, and corrected the first three errors. After this, I still got one error: was required by app.core but not available. I copied Jacek’s code over to ensure everything in the code was fine, and I still got the error. There’s a caching element or way Re-Frame works that I don’t understand here. It took the steam of a hot shower to “idea” me to delete the .shadow-cljs/build folder and restart. Doing that it, worked.