editor: Improve fuzzy match bucket logic for code completions (#29442)

Add new test and improve fuzzy match bucket logic which results into far
better balance between LSP and fuzzy search.

Before:
<img width="500" alt="before"
src="https://github.com/user-attachments/assets/3e8900a6-c0ff-4f37-b88e-b0e3783b7e9a"
/>

After:
<img width="500" alt="after"
src="https://github.com/user-attachments/assets/738c074c-d446-4697-aac6-9814362e88db"
/>

Release Notes:

- N/A
3961d87ae0Smit Barmase committed on 4/25/2025, 8:44:18 PM· committed by GitHubparent8b910e1
2 files changedLine totals unavailable