Add way to copy the alignment coordinates shown with mouse over

[chklopp]

Is your feature request related to a problem? Please describe.
When visualizing a dgenies dot plot you can mouse over the links and a colored bubble appears containing the link coordinates. It would be really convenient to be able to copy the coordinates (query and target contigs names + coordinates).

Describe the solution you'd like
while mouse over just push the "C" character to copy the informations to the clipboard.

Describe alternatives you've considered
No alternative

Additional context
Not relevant