Add optional browser navigation buttons to docks

[kakra]

If I add a dock that contains a web browser source, I cannot use back and forward: there's no context menu and my mouse buttons for back and forward don't work either.

I wonder if it would be possible to optionally add a back/forward/home/reload button to a source dock to send commands to the embedded web browser. "Home" should return to the original browser URL set in the source properties (similar to what the "reload" button does for a browser source), while "reload" should reload the current location.

[exeldro]

It looks like this would require changes to the browser source itself.