Pan viewport by hovering close to edge of diagram

[keyserj]

Is your feature request related to a problem? Please describe.
Sometimes clicking and dragging to more the diagram viewport is just a little annoying. It would be nice to have more options to move around.

Describe the solution you'd like
Pan the viewport if the mouse hovers over the edge of the diagram (like League of Legends' unlocked camera)

Questions to answer

• can anything be done to help mobile out here?

Describe alternatives you've considered

• interactive minimap (see flow example), click to move viewport (helps mobile but might take a lot of space... maybe a map button that full-screens the map)
• scroll to move viewport (shift for horizontal move, but that might conflict with shift to multiselect nodes)
• arrow-keys to move viewport done

Additional context

Technical ideas