Add a similar cut out feature for screenshots just like the one in Screenpresto

[Samy Lahfa]

Feature Description

I believe this feature would be a very good addition to be on feature par vs this proprietary tool that is available on Windows :

• Link to manual : https://www.screenpresso.com/docs/ScreenpressoHelp.pdf
• Page 55/87

The feature allows to cut an image/crop but either horizontally or vertically of the image and it will automatically restich the rest of the content after the cut out, you can basically cut out content that you do not want to keep in the screenshot.

I have no idea how would one implement such a feature nor do I have read the codebase of flameshot or is familiar with it.

But I believe this feature would be a very good addition to Flameshot.