[BUG] Icons are not centered vertically #64
Description
Issue Summary
The two/three buttons, quit, question (and setting), in the top left are not centered correctly.
Also, how about changing the X to X-Circle-Fill to be more consistent?
Expected Behavior
Button labels are centered.
Additional Context
I tried to change it, but I have no experience with LVGL yet.
Currently it seems that the icon font is not centered in it self, but I believe this is the case in the bootstrap font.