Save data!!!

I was going to include this in the next major update but literally everyone who played my game begged me to add it so here you go! It was not fun to implement, but I'm glad I did.

changes:
-Game autosaves every 30 seconds to localStorage (progress resets if you have the wrong amount of things saved in localStorage)
-Fixed pluralization errors
-(effects game dev and potential modders only) game is now split into multiple files to make things easier to manage.