Equipment is now reliably saving. Start and death screen graphics and UI improvements.

I finally have the issue with equipment not saving fixed. Now when you equip an item, it stays in your inventory. So, if you save and exit the game, now you may have to re equip it, but it will stay there. I also fixed the title to the start and death screens and added some background graphics. Then I made a button that will allow you to close a menu while in the main menu without closing the whole main menu. It also works in the shop.