Show dev-tools (inspect view) highlights of the elements when trying to share a specific part of the page

[Stvad]

ux consideration for #29

[Stvad]

https://github.com/andrewchilds/jQuery.DomOutline one option
https://stackoverflow.com/questions/62083378/javascript-that-mimics-chrome-devtools-select-an-element-in-the-page-to-inspe more discussion

[Stvad]

https://stackoverflow.com/questions/2399797/javascript-let-user-select-an-html-element-like-firebug more/better options

[Stvad]

https://stackoverflow.com/questions/45985234/how-to-highlight-elements-in-a-chrome-extension-similar-to-how-devtools-does-it even more promising!

[Stvad]

dev-tools try to be as specific as possible, but 's not exactly what I want here. Add shortcut to "go to parent" when in the selection mode

[Stvad]

https://github.com/gorhill/uBlock/blob/5cc7a3a8524371ce8d7ab669813b80ef09276c7f/src/js/scriptlets/element-picker.js#L228

[Stvad]

https://github.com/gildas-lormeau/SingleFile offers a different perspective on this by allowing you to export the selection