NMS-16103: Node structure UI updates, selectable columns

[synqotik]

NMS-16103: Node Structure UX improvements, selectable columns

• horizontal table scroll, highlight on mouseover
• added "Filtering" and "Metadata Search" headings
• dropdown to select which columns to display, and a button to reset them to the default
• start of support for ordering columns, will do rest in subsequent task
• refactored some functionality into smaller Vue components
• vertical ellipse menu for node actions (links to other pages, etc.)
• node details dialog, will add more in subsequent tasks
• using buttons instead of radio group for "Any / All" switch
• add metadata search autocomplete, even though it's non-functional for now (want this in to get UX feedback)
• truncate long text and provide tooltip
• flows icons
• title and move Search input to right

There's enough functionality here that can probably merge feature branch to develop once this has been merged.

External References

• Jira (Issue Tracker): https://opennms.atlassian.net/browse/NMS-16103

[mikewrosey]

Only found a few minor things, and since this isn't going straight to dev anyway it looks good to approve. All in all a great job too, nice clean components.

[synqotik]

Only found a few minor things, and since this isn't going straight to dev anyway it looks good to approve. All in all a great job too, nice clean components.

Thanks! Going to merge this but fix all the issues in a subsequent PR, before merging to dev.

[synqotik]

All comments are being implemented/addressed in upcoming PR.