This improves performance, because we don't render after every single
match/range that was added to the results.
I think for my example search it's twice as fast?
## Numbers
Recorded in debug mode (because it's 6:30pm and my poor computer has
spun its fan enough for today and also because you can see the change of
the effect more in debug mode), rendering `<` searched in `zed.dev`
repo:
- Before: `14.59558225s`
- After: `2.604320875s`
## Videos
Before (recorded in release mode):
https://github.com/user-attachments/assets/909260fa-3e69-49ab-8786-dd384e2a27ee
After (recorded in release mode):
https://github.com/user-attachments/assets/fc8a85d3-e575-470f-b59c-16a6df8b3f80
## Release Notes
Release Notes:
- Improved performance of rendering project-search results in the
multi-buffer after finding them.
Thorsten Ball
1d868e19f2