Allows you to configure which direction to open the alphabet

Currently we can open the alphabet through left and right.

(I actually hate the alphabet, it's not intuitive and very annoying and I would really like to disable it forever!)

But in the meantime, it would be nice if it was activated only on the right or only on the left (based on the user's choice) this will prevent me from always opening it by mistake, especially since I have a cell phone with a curved screen.