diagnostic messages clipped in multibuffer

[jvatic]

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• Completed

Describe the bug / provide steps to reproduce it

When opening Project Diagnostics, messages are displayed on a single line and clipped when they extent beyond that (as is frequently the case with rust warnings and errors), and it's not obvious how to see the full thing without making use of the "copy diagnostic" button and pasting it somewhere.

Environment

Zed: v0.148.0 (Zed Preview)
OS: macOS 14.5.0
Memory: 18 GiB
Architecture: aarch64

If applicable, add mockups / screenshots to help explain present your vision of the feature

Take a clippy warning for example, it shows up fine when hovering over the matched span when viewing the file containing it normally, but when viewed in the multibuffer the warning is clipped/truncated:

which can be contrasted against VSCode, which shows the full summary and provides a link to view the full message:

It'd be nice to have the full summary shown along with the first help line, and an option to expand to see the full message.

If applicable, attach your Zed.log file to this issue.

No response

[github-actions]

Hi there! 👋
We're working to clean up our issue tracker by closing older issues that might not be relevant anymore. If you are able to reproduce this issue in the latest version of Zed, please let us know by commenting on this issue, and we will keep it open. If you can't reproduce it, feel free to close the issue yourself. Otherwise, we'll close it in 7 days.
Thanks for your help!