Enhancing UI and understanding of the game

I’ve been working on #small things in my #roguelike:

•  Items equipped are highlight the same in the inventory menu and in the inventory bar (see white arrows below)
• I've added a close button (white cross), for #android mainly and for mouse users (see red circle below)
• You can now see the stats of a monster by clicking on its health bar on the right. I've also added a tip telling that when hovering over the bars