search: Update results multi-buffer before search is finished (#35470)

I'm not sure when we've lost that notify, but it's causing the time to
first search result equal to the time to run the whole search, which is
not great.

Co-authored-by: Remco <djsmits12@gmail.com>

This discussion has originally started in #35444

Release Notes:

- Improved project search speed.

Co-authored-by: Remco <djsmits12@gmail.com>
bf361c316dPiotr Osiewicz committed on 8/4/2025, 4:25:42 PM· committed by GitHubparent65018c2
1 file changedLine totals unavailable