Drawing / Sketching
Currently drawing and sketching is based on canvas. Maybe SVG is better?
We also should think about how it's possible to sketch on a video-frame in post-annotator?
Should we make the whole video an artboard to sketch on and then the image with the video frame gets generated in the backend?
Or should we get the video frame in the frontend somehow and then let the user draw on it directly? So the image will be generated in the front-end? (At the moment there is a basedOn prop which allows to draw on an image already. But that has to be optimised. I also have no clue how it would be possible to get a frame as an image in the front-end)