Some GUI updates

Hello again from Abyss Team! We've been hard at work with implementing the script (and squashing an exorbitantly large amount of bugs in the process)!

In this progress report, we're here to showcase some GUI redesigns that we'll be using in the final full version of Hellevator:

Our new Title screen. Definitely not a scary game.

Options screen. Well, one-half of it, anyway.

Textbox GUI. The options below are still a variable WIP, but they'll be a bit different than the Renpy defaults.

We still have a lot more in store: more GUI components and a few new mechanics that we didn't get to implement in the demo. Look forward to them in a future update!