Just added new stat icons and reworked how they're shown in Menus too~

I dig the style, even though I'm not 100% I won't do more changes to them in the near future.
Pieces of equipment now also show the stats they provide in a more compact and readable way! I've also added the variance (the "+-" icon) to the description, as it greatly impacts the final stats your weapons and armors have.
Shortly, if you've got an armor with +2๐ก๏ธ and a variance (+-) of 1, the final Toughness provided can range from 1๐ก๏ธ (2๐ก๏ธ - 1) to 3๐ก๏ธ(2๐ก๏ธ + 1)!
That's a lot of ๐ก๏ธ!