Make LSP status message match new font size of diagnostic message (#2796)

The status bar diagnostic message font size was updated in
https://github.com/zed-industries/zed/commit/1f65effe57b85d126fcb5689d6d37ec3f768502e
but the LSP status message font size remained the same causing a font
size change when swapping between the two

![CleanShot 2023-07-26 at 18 32
13](https://github.com/zed-industries/zed/assets/30666851/8d357f46-3a48-4ed1-9832-d24b4b2be4a8)
![CleanShot 2023-07-26 at 18 30
56](https://github.com/zed-industries/zed/assets/30666851/e4ce9911-f66d-4bc3-b951-78196da44176)

Release Notes:

- Fixed an inconsistency in status bar font size.