344f63c6ca
Closes #39515 **Details:** - Improved logic for formatting completion labels, as some (such as `namespace`) were missing space characters. - Added extra logic as per stale PR #39533 [comment](https://github.com/zed-industries/zed/pull/39533#issuecomment-3368549433) ensuring that cases where extra spaces are not necessary (such as functions) are not affected - I will note, I was not able to figure out how to fix the coloring of `namespace` within completion labels as mentioned in that comment, if someone would provide me with direction I would be happy to look into that too. Previous: <img width="812" height="530" alt="previous" src="https://github.com/user-attachments/assets/b38f1590-ca2d-489d-9dcb-2d478eb6ed03" /> Fixed: <img width="812" height="530" alt="fixed" src="https://github.com/user-attachments/assets/020b151d-e5d9-467e-99c1-5b0cab057169" /> Release Notes: - Fixed minor issue where some `clangd` labels would be missing a space in formatting