Unify lozenge styling
The use of lozenges (circular blobs with an icon or short text in) has expanded and several things could be done to rationalise things:
- Split a lozenge widget out (currently the same GtkBuilder markup is copied everywhere)
- Use the size allocation vfunc in the widget to ensure the lozenge is always square, or significantly wider than it is tall
- Experiment with making lozenges at the top of dialogues (all the context dialogues plus the app translation dialogue) larger (80x80px with 32px icon) as per this comment