Polish command-line help dialog formatting

[puneetdixit200]

Summary of the Pull Request

Narrows the generated wt command-line help formatting so the text shown in the help MessageBox wraps at a dialog-friendly width.

References and Relevant Issues

Closes #4134

Detailed Description of the Pull Request / Additional comments

The command-line help text is produced by CLI11 before WindowEmperor displays it in a MessageBox. This updates the shared CLI formatter to use narrower help columns and a 72-character paragraph width, so top-level and subcommand help avoid long horizontal lines in the fixed-size dialog.

The existing command-line help tests now assert that generated help lines stay within that 72-character limit, and the stale GH#4134 TODO at the MessageBox call site has been replaced with a comment pointing to the formatter behavior.

Validation Steps Performed

• Verified the touched files keep the repository's CRLF line endings.
• Ran a targeted trailing-whitespace check on the touched files.
• Reviewed the final diff.
• Could not run the Windows TAEF/msbuild test suite from this macOS environment.

PR Checklist

• Closes Polish Commandline Help MessageBox to be at least like, but at best better than, msiexec /? #4134
• Tests added/passed
• Documentation updated
  • If checked, please file a pull request on our docs repo and link it here: #xxx
• Schema updated (if necessary)

[zadjii-msft]

Can you add a screenshot of what this looks like?

[microsoft-github-policy-service]

This pull request has been automatically marked as stale because it has been marked as requiring author feedback but has not had any activity for 7 days. It will be closed if no further activity occurs within 7 days of this comment.