Timebox / POC for now (13 SP)

Problem:

• currently find bar returns a configurable number of results (defaultCountPerSupplier; default: 10)
• this means the user never sees more than 10 or XX results which is an incomplete result list
• making that number configurable as done by MGNLUI-4765 doesn't solve the problem
  • we want to show multiple result groups at first sight, which means max 3 items per group, else the groups slide out of view
  • it's not practical that an admin configures the number per result group, as that number is most likely to change

Solution:

1) Load more results

• implement "load more results" to the find bar mechanics
• after last item of a result group add an additional row that says "load more results"
• the "load more results"- row can be accessed via arrow-down (same as the other rows)
• on enter show 10 more results, focus is now on the first row of the newest loaded
• can be repeated until max results

2) Display 10 from n results

• in addition to displaying total results on top, also show "10 from n results" per group