Zoekt calls two times for rendering the results

What does this MR do and why?

This code change improves how search results are cached and retrieved in a search system. Previously, the code would recalculate blob data every time it needed to count results, which was inefficient. Now it stores the blob data in a reusable variable (@blobs) and tries to get the count from that cached data first. If the cached data isn't available, it falls back to the original method but with a more efficient "count only" option. This reduces unnecessary duplicate work and makes the search feature faster.

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Related to #563357 (closed)