Effects drag and drop target in the timeline canvas is almost impossible to hit
@jeff
Submitted by Jeff F.T. Assigned to b'Matas Brazdeikis' @matasbbb
Description
Dragging an effect onto a clip in the timeline is insanely hard and I've been struggling to figure out why it only worked 1 out of 4-5 times for me. Turns out the reason is that the drag and drop "target" only comprises the upper half of the video track object.
We probably can't have the target zone be the entire zone between the upper edge of the video object and the lower edge of the audio object, because this would break when we have other clips in layers inbetween.
However, the drop target for the video (or audio) object should definitely cover the entire object's height.
Imported from https://bugzilla.gnome.org/show_bug.cgi?id=650707