Add copy link button to members in the in-editor documentation

[Kartopod]

The online documentation is not great to use, so I (and I presume many others) prefer to use the in-engine documentation to search for what I'm looking for. When I'm helping someone else (on the community discord) I often want to link them to a part of the API, however, this is not frictionless since I would have to open the web documentation to be able to do so.

The web documentation shows a link icon next to the member's name to hyperlink to it:

Clicking the button here generates: https://docs.godotengine.org/en/stable/classes/class_basematerial3d.html#class-basematerial3d-property-albedo-color.

It would be great if a similar button showed up in the in-engine documentation to copy the same link to the clipboard. This would make linking to the documentation much simpler.