I wanted a way to make it easy to figure out which version of a language
server Zed is running. Now, you get a tooltip when hovering on a
language server in the Language Servers popover.
<img width="498" height="168" alt="SCR-20251218-ovln"
src="https://github.com/user-attachments/assets/1ced4214-b868-4405-8881-eb7c0b75a53e"
/>
This PR also fixes a bug. We had existing code to open a tooltip on
these language server entrees and display the language server message,
which was never fully wired up for `CustomEntry`s. Now, in this PR, we
will show show either version, message, or both, in the documentation
aside, depending on what the server has given us.
Mostly done with Droid (using GPT-5.2), with manual review and multiple
follow ups to guide it into using existing patterns in the codebase,
when it did something abnormal.
Release Notes:
- Added language server version in a tooltip on language server hover
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Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>