Font size too small on some devices

# Context In #111, @tokesk and @hhasert wrote respectively: > ps: Couldn't you add a font size setting? The text is very small for me. and > I also notice the font sizes are a bit small (doable but still), so I second the idea to set font sizes for items. # Analysis ❓ Is it needed to have a setting for this or should the right font size be computed from the screen size and resolution? I tend to prefer the latter. @tokesk ? @hhasert ? What do you think?