[Feature] Click to open constraint system image in new tab

[thgoebel]

• I searched the issues for duplicates and hope I didn't miss it

Problem statement

I often find myself doing "Right click" -> "Open image in new tab" to open the constraint system image/graph in a new tab. Large graphs are almost always easier to view in a separate tab than within the Tamarin GUI.

Proposed solution

My workflow would be much faster if I could simply left-click on the image and it would automatically open in a new tab.