Inserting images from clipboard

Hi @mgiesen , I hope you're well!

Great work on this extension!

It would be even more awesome if we could CTRL+V images in the clipboard - let's say I do a print screen, or an area clip and paste in the code. With this, the extension adds the comment and saves the image to the project base folder (or a path specified in the config). Then I could commit it all and push it into git to have some collaborators damn happy with it.

Thank you!

Start by reading the extension's existing comment insertion behavior and its configuration handling. Trace how pasted content is processed, then determine how clipboard images could be saved in the project base folder or configured path. Done means CTRL+V creates the image comment and stores the image so it can be committed with the project.

Written by the indexing model from the issue text.