Make the node configs to be easily defined

[liferoad]

Maybe add more blocks to catalog.

[liferoad]

Tested the idea to use the keys as labels and values as input boxes to configure the yaml file. The branch is https://github.com/liferoad/beamforge/tree/test-node-configs. It does now work well since we also need to support adding more arbitrary key/value pairs. It seems that using DashAceEditor is more flexible.