Fixes and improvements in animations and UI. — Selene's Unbearable Night Steam update #265300

-Most character movement animations are improved. This to have a more fluid and realistic movement. -A new section is added that improves and expands the final puzzle, since it felt weak and unfunny. (Plus it's a next level track). -The general UI of the menus and when collecting objects are modified. This to have better visibility and recognition of the objects that are collected. -Enemy reactions are improved when hitting different parts of the body with the shotgun. -Optimization is improved. -Some lines of dialogue are improved. -The AI ​​of human enemies is improved. -Fixed the bug that caused the arrows to not display correctly on his back. -Some problems with lighting and textures are corrected and improved.