HdyComboRow overlaps too much with GtkDropDown
In GTK3 this widget didn't mirror
GtkComboBox API because it was old and terrible, and instead used list models and name functions. In GTK4 there's
HdyComboRow is now literally an action row + copypasta from
GtkDropDown, with the only difference being styling.
Is it really that important to keep it? Or should we instead add the ability to use the kind of styling we want to
GtkDropDown (most noticeably, popover arrow and position) and just use that?