HAHAHAHAHA.......

That was a loud and awkward laugh. Very loud and awkward. The previous build did not work. Thankfully, there were not many downloads. Why didn't it work?

Well...

The app saves your playlists and their information into a JSON file. (This is because I like JSON, and also because I might try and make a web-app equivalent.) This JSON file is generated by the app. And therein was the problem. I had spent so much time testing the app, but never when the initial JSON file was empty. This proved to be only the beginning of my troubles. Additionally, I auto-formatted the source in VS-Code. This screwed-up EVERYTHING. The formatting was even more confusing than before, some brackets disappeared, code blocks MOVED to different places, variables declarators were merged with variable names, and MORE. Some vital -1's for indexing disappeared, and the list goes ON. It was a stressful and confusing two hours of finding and fixing all the problems. 

But cheers, it has been done. IT IS FINISHED! (For now.)

My deepest apologies to any and everyone who was looking forward to this only for it to fail miserably. This is a lesson in carefulness.

Be sure to TEST, TEST, TEST. And when you're sure everything's fine, TEST AGAIN! Also, be careful with autoformatting tools. They can be your best friend or your worst enemy, and either way, it's good if you learn the rules yourself.