Add time remaining column to progress bars

[fonnesbeck]

Description

Adds TimeRemainingColumn to progress bar where appropriate, also properly hides progressbar during sample_posterior_predictive

Related Issue

• Closes New progressbar doesn't show elapsed time #7269
• Closes BUG: new progressar adds empty spaces when progressbar=False #7264
• Closes New progressbar not showing divergences? #7278

Checklist

• Checked that the pre-commit linting/style checks pass
• Included tests that prove the fix is effective or that the new feature works
• Added necessary documentation (docstrings and/or example notebooks)
• If you are a pro: each commit corresponds to a relevant logical change

Type of change

• New feature / enhancement
• Bug fix
• Documentation
• Maintenance
• Other (please specify):

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📚 Documentation preview 📚: https://pymc--7273.org.readthedocs.build/en/7273/

[ricardoV94]

While we're here can we also try to fix #7264 ?

This issue suggests there should be transient flag we can play with? Textualize/rich#110

[fonnesbeck]

Will try and fix #7278 here as well.

[fonnesbeck]

[ricardoV94]

Branch seems to have some conflicts?

[zaxtax]

Looks good. After my comment is addressed should be good to merge.

[zaxtax]

LGTM