Follow-up to https://github.com/zed-industries/zed/pull/54100
Closes https://github.com/zed-industries/zed/issues/55046

Before:


https://github.com/user-attachments/assets/d4730342-3526-48a8-8050-b398725a2cb9


After:


https://github.com/user-attachments/assets/5493a0a1-3a8e-4215-a10c-8cd9bb04141d


Release Notes:

- Fixed code lens flickering when typing