Nextbox-ui-plugin

* Handle cables with incomplete terminations properly. Fixes https://github.com/iDebugAll/nextbox-ui-plugin/issues/154.
* Use node IDs derived from device IDs.
* Update topoSphere to handle some edge bundling edge cases.

Implementing new modal windows for the nodes and edges available on right mouse button click.

What's new:

* topoSphere: a new topology visualization engine
* reworked filters
* dark mode detection
* main menu button