Thanks for the bug reports! Yep, the bookshelf thing is something I fixed in the Steam version but forgot to release an update for on Itch. I've read through everything you mentioned and will try to get an update released fixing that and the typos when I have a chance.
On targeting allies with healing spells: I'm not sure why this would happen, but I would make sure your mouse cursor isn't hovered over anyone, which'll make you unable to select anyone else with the keyboard.