Adds a short intro line above the suggested support articles list in the
new support case form so it's clearer that the items are clickable
links. Resolves FE-3548.
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## Summary by CodeRabbit
* **New Features**
* Documentation suggestions now include a short introductory message
above results and place recommendations inside a clearer grouped
container with improved spacing, enhancing readability while preserving
subtle dimming for older suggestions.
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