Demo Update

Ahoy, landlubbers!

Here are the updates for 2.0.0.DEMO.PRC1:

• Sprite changes.
• Minor UI changes.
• CGs changed to match with the sprites.
• The main menu changed.
• Removed autosave and quicksave while also reducing the number of save slots due to wasted pages for a demo.
• Speaking of which, it's now a DEMO!... first revision.
• One background changed.
• Minor writing revisions.
• Added a couple of scenes.
• Added side images.
• Updated Ren'Py engine to 7.4.6.1693.