Kap: Open Kap's editor with an external video file

[timothyis]

Would be amazing if you could drag-and-drop a video file onto the Kap icon in the menubar and then proceed to use Kap's editor with that video file. This way you can convert pre-existing mp4 files to gif/webm/etc. without needing to record. You could also upload the file using Kap plugins making them much more useful.

Once the trimmer (#216) is in, this would be very helpful to pre-existing video files too.

[skllcrn]

I need this in my life.

[sindresorhus]

We should also register Kap in the "Open With" context menu.

This can be done with the extendInfo Electron Builder config. https://stackoverflow.com/a/19148579/64949

[skllcrn]

This feature is available in Kap 3.0!