When a whiteboard frame is selected, dragging any part of it should drag the frame

What is the challenge?

When I have a frame selected like this, clicking and dragging should move the whole frame, but if you click on an item within the frame, it drags the item instead of the frame.

When several items are selected, clicking and dragging moves the selection. When a frame is selected, its contents implicitly are too, so it should behave the same.

What is the impact?

Organising frames on a board is fiddly and error prone

Describe your idea.

Clicking and dragging anywhere on a selected frame should move the frame, and should not change the selection. (Technically this probably happens because selection happens on mousedown, not mouseup)