Allow member specific server setting for core.syslog_server WD-18265

[edlerd]

Done

• Allow member specific server setting for core.syslog_server in clustered environment
• Adjust edit button for clustered server settings to be visually more like the non-clustered settings
• Adjust spacing for clustered server settings
• Fix race on loading network edit for cluster specific edit of physical managed networks parent field.

Fixes WD-18265

QA

1. Run the LXD-UI:
   • On the demo server via the link posted by @webteam-app below. This is only available for PRs created by collaborators of the repo. Ask @mas-who or @edlerd for access.
   • With a local copy of this branch, build and run as described in the docs.
2. Perform the following QA steps:
   • explore server settings in clustered and non-clustered backends.
   • ensure the core.syslog_server setting is handled correctly for member specific, and generic values in cluster backends

[webteam-app]

Demo

Jenkins

demos.haus

[Kxiru]

Looks good to me from a functional and visual perspective! Thanks so much for this David. Just a merge conflict to address and then we're good to go!

Screenshots for visibility: