MNT: improve happi audit output

[tangkong]

Description

• gives non-interactive audit tables a max width
• fixes bad logic in table construction

Motivation and Context

I want audits to be more useful
closes #338

How Has This Been Tested?

interactively

Where Has This Been Documented?

This PR

Pre-merge checklist

• Code works interactively
• Code contains descriptive docstrings, including context and API
• New/changed functions and methods are covered in the test suite where possible
• Test suite passes locally
• Test suite passes on GitHub Actions
• Ran docs/pre-release-notes.sh and created a pre-release documentation page
• Pre-release docs include context, functional descriptions, and contributors as appropriate

[ZLLentz]

These changes make sense and look good to me