Make advanced configuration editable in the scan profile form

What does this MR do and why?

Wires <advanced-configuration-table> into <advanced-configuration-editor> so a profile's configured variables can be viewed and edited directly in the create/edit form, instead of only being viewable after saving. Each configurable trigger gets its own row in the expanded view: a boolean renders as an Enabled/Disabled radio group, an enum as a dropdown built from the variable catalog, everything else as a text input, each with a remove action next to it.

References

• issue: [Frontend] Scan profile drawer: view, create, e... (#624191 - closed)
• parent work item: Advanced Configuration Profiles for Security Sc... (gitlab-org#20193)
• Design: security-inventory-profiles

Screenshots or screen recordings

Before	After
The 'advanced-configuration-table' doesn't exist on this page yet.
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How to set up and validate locally

1. Enable the custom_scan_profiles_ui feature flag.
2. Go to Security configuration, pick a scanner that supports profiles (e.g. Secret Detection), and open Manage profiles.
3. Create or edit a profile, enable at least two triggers, click Add variable, pick Image variant, choose Default, and save — the button is now enabled and the row shows up with the "Default" label instead of nothing.
4. Add a second variable (e.g. Historic scan), expand its row, and edit a single trigger's value directly — the change should save without touching the others.
5. Remove a trigger's value (the trash icon) while another trigger still has it set — the row should stay in its original position and show an empty, editable field for that trigger, not disappear.
6. Toggle on a previously-disabled trigger while other triggers already share a configured value — the newly enabled trigger should start with the same value instead of blank.

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