Inventory Improvement - Key Input and Doubleclick — Ani Idle Steam update #1064118

There was some feedback on the inventory buttons, for some they were not readable/ too small. Therefore I added other possibilities to handle your inventory and equipment: While your mouse is over an inventory or equipment slot, you can now use the following inputs: - Double left click --> Use or (Un)Equip item - Press "E" on keyboard --> (Un)Equip item - Press "U" on keyboard --> Use item - Press "C" on keyboard --> Craft item - Press "X" on keyboard --> Dismantle item