chore(prettier): ignore lib/vscode

[jsjoeio]

We were using an overrides command in our .prettierrc.yaml which
quickly became out of sync with Code's Prettier styles.

Instead, we simply tell Prettier to ignore lib/vscode.

This way, if you have formatOnSave on and you save inside
lib/vscode, you won't convert the file to use code-server's styles.

Fixes #

[github-actions]

✨ code-server docs for PR #5347 is ready! It will be updated on every commit.

• Host: https://coder.com/docs/code-server/8153a1d
• Last deploy status: success
• Commit: 1f31d3a
• Workflow status: https://github.com/coder/code-server/actions/runs/2679283565

[github-actions]

✨ code-server dev build published to npm for PR #5347!

• Last publish status: success
• Commit: 1f31d3a

To install in a local project, run:

npm install @coder/code-server-pr@5347

To install globally, run:

npm install -g @coder/code-server-pr@5347

[codecov]

Codecov Report

Merging #5347 (1f31d3a) into main (907dd83) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #5347   +/-   ##
=======================================
  Coverage   72.38%   72.38%           
=======================================
  Files          30       30           
  Lines        1673     1673           
  Branches      367      367           
=======================================
  Hits         1211     1211           
  Misses        399      399           
  Partials       63       63           

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