Default to unlimited line width when dumping yaml blocks

[rak-phillip]

Summary

This defaults to unlimited line width when dumping yaml blocks. This should resolve issues where newline characters are inserted into yaml while using the form editor, breaking previously functional manifests.

Fixes #10589

Technical notes summary

I don't see any situation where it would be valid to insert newline characters at the default of 80 characters. If we do want this behavior, that would be the exception and we can supply proper options for a specific field we want to target.

An alternative approach would be to specify a lineWidth for individual fields like metadata.annotations, but I thought this too specific an approach, and leaves us in a situation where future tickets will open for properties that we haven't considered.

Areas or cases that should be tested

Configmaps - See the linked issues for detailed reproduction steps.

Areas which could experience regressions

• Configmaps
• Anything that utilizes the create-yaml util

Checklist

• The PR is linked to an issue and the linked issue has a Milestone, or no issue is needed
• The PR has a Milestone
• The PR template has been filled out
• The PR has been self reviewed
• The PR has a reviewer assigned
• The PR has automated tests or clear instructions for manual tests and the linked issue has appropriate QA labels, or tests are not needed
• The PR has reviewed with UX and tested in light and dark mode, or there are no UX changes

[torchiaf]

LGTM
I found small type issues, not related with current changes: #10775