Fix rendering issue with vtsls (#15087)

Before:
<img width="697" alt="Screenshot_2024-07-20_at_20 47 41"
src="https://github.com/user-attachments/assets/bc6db18e-77b9-400b-a917-2545269b7d1b">
After:
<img width="707" alt="Screenshot_2024-07-23_at_22 09 27"
src="https://github.com/user-attachments/assets/a0f6ebe5-fba0-4cc1-8d8b-b1982e2adf95">

Release Notes:

- Fixed multiline details provided by vtsls breaking rendering in
autocompletions