Show full error context in server messages

[dhruvmanila]

Summary

Reference: https://docs.rs/anyhow/latest/anyhow/struct.Error.html#display-representations

Closes: #13022

Test Plan

2024-08-21 15:21:24.831 [info] [Trace - 3:21:24 PM]    0.017255167s ERROR ThreadId(04) ruff_server::session::index::ruff_settings: Failed to parse /Users/dhruv/playground/ruff/pyproject.toml: TOML parse error at line 1, column 1
  |
1 | [tool.ruff.lint]
  | ^^^^^^^^^^^^^^^^
Unknown rule selector: `ME102`

Or,

2024-08-21 15:23:47.993 [info] [Trace - 3:23:47 PM]  143.179857375s ERROR ThreadId(66) ruff_server::session::index::ruff_settings: Failed to parse /Users/dhruv/playground/ruff/pyproject.toml: TOML parse error at line 2, column 42
  |
2 | select = ["ALL", "TD006", "TD007", "FIX"
  |                                          ^
invalid array
expected `]`

[github-actions]

ruff-ecosystem results

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