Draw.io app support

[garysb]

Hi Igazo,

Thank you for your amazing work on this, you are making my life so much better!

I have the browser extension working perfectly but am wondering if there are plans to roll this out to the Draw.io app? I know this might be hard as the app is written in Electron which does not support browser extensions fully.

[lgazo]

It is a duplicate of #11. I have a few ideas how to achieve it however it would require a substantial refactor and modularization. Still thinking about it...