[Suggestion] add a progress bar during keyframes import
Just some kind of progressbar... maybe updated every 5 seconds, just to be sure that Kdenlive is not crashed. an example: i taken 100000 keyframes (for stabilizing/tracking accuracy), Kdenlive is able to manage this without issues, but the interface is hanging when i import that keyframes on a "transform" effect (or any other effect), and looking at the screen seems that the the editor is not responding anymore (no refresh of GUI), after 40 seconds Kdenlive has finished to import keyframes and everything is working fine.
maybe can be usefull to add some sort of progressbar during this phase.