Make menu clearer

[hobnob]

Is your feature request related to a problem? Please describe.
The menu on the left is not as clear as it could be and some people are struggling to figure out the icons. this is exacerbated by some icons having a specific meaning in Gloomhaven that is not the same meaning as the app gives them

Describe the new feature you'd like
I think stylised tooltips would help here. The title that we've got is fine, but it doesn't really show for a while. Another suggestion was to be able to extend the menu to include the names. I'll have to play with it to see what's better style wise