Added JavaScript runnable detection for `context` and `suite` methods (#21719)

Fixes
https://github.com/zed-industries/zed/pull/21246#issuecomment-2525578141

<img width="545" alt="Screenshot 2024-12-08 at 22 58 33"
src="https://github.com/user-attachments/assets/2f303bfe-9718-4aa9-910e-613feca15ea8">
<img width="409" alt="Screenshot 2024-12-08 at 22 58 44"
src="https://github.com/user-attachments/assets/c4576cf7-fd71-44d2-911e-3ed944c9b794">

Release Notes:

- Added JavaScript runnable detection for `context` and `suite` methods
for mochajs framework