Follow-up from MGNLUI-4678.

User story:

As a Magnolia product manager, I want to demonstrate Suggestions in the Find Bar. I want to show that Suggestions are relevant and match the content users typically work on.

Example: I search for "beach", "vietnam" and "iran", and click the matching tours in results. I expect Find Bar to start suggesting more tours because I work mostly with tours. 

Acceptance criteria for MVP:

• Content from all default result suppliers (MGNLUI-4728) are represented in Suggestions, not only assets.
• Limit the total number of suggestions to ~10 items.
  • Suggestions is supposed to be a short list that you quickly glance to find the content you recently worked on. The user is not expected to scroll below the fold. They should rather do a search if they can't see the relevant content item immediately.
• Group suggestions per result supplier.
  •  This is not the final design but because of a time constraint we will group suggestions for the MVP milestone. In the final design, suggestions are all mixed together into a "Recently edited" group, see https://zpl.io/blmEWgP
• Rank suggestions by recently clicked in Find Bar results. Use AI.