150 floors "minor" updates

Hey all,

Just wanted to work out some kinks from the official demo release. Did that originally and noticed some game breaking bugs afterwards. Sorry for the update delay.  I will keep updating the demo to fix bugs, but afterwards I am planning on releasing a bigger update sometime early next year that will push the storyline and combat of the game. Stay tuned!

- Added buy button to each skills in skills shop

- Fixed magic attacks to tile behavior for player/enemies

- Fixed skill slot movement glitch

- Fixed tooltip glitch where it would stay on screen when exiting out of a npc shop

As usual, thank you for playing 150 Floors and I look forward to hearing feedback!