Add graph visualization

[jtpio]

Description

It would be nice to have an extra widget with the visualization from mamba-org/mamba-navigator#5.

For reference the component was defined here:

https://github.com/mamba-org/mamba-navigator/blob/84a3d5a700b30017112d68b98fdd7e63adc9f182/src/components/Network.vue

[fcollonval]

Closing as implemented in #102