Node Editing in UI

[mattkasun]

The following fields appear to be editable in the UI but if changes are made and saved, the values revert back:
applicable to:

1. Default Listen Port
2. Default KeepAlive

If these fields are not editable, they should be non-editable in the GUI like NodeLastModified and GroupLastModified

[mattkasun]

Also applicable to address field in nodes

[afeiszli]

Those should be editable. There is likely an issue with the update function which I need to investigate.

[afeiszli]

adding to v0.2 fix list

[afeiszli]

Unable to replicate in develop branch. This may have been fixed by some changes to netclient and the API, but I changed both values, and they persisted, showing in the local netconfig file as well as in the active wireguard configuration. I think we can close this for now but you can test with develop and reopen if necessary.