Data management dialogs look inconsistent
The various data management dialogs all look inconsistent, even though they share the same style, with a "clear" button at the start of the header bar and a "search" button at its end.
- personal data
I suggest we implement a simple base class for all of them, taking care of the basic layout, so they can all look consistent. As we kinda agreed on the design these dialogs should have when discussin gthe history dialog's design, I suggest we use that design as the target.