Fix function name from 'feeding-time-p' to 'feeding-time'

[Maartz]

Summary

As it's not a predicate, do not return T or NIL we should ditch the -p suffix.

Checklist

• If docs where changed run ./bin/configlet generate to ensure all documents are properly generated.
• CI is green

[github-actions]

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[verdammelt]

I see that you opened 3 PRs to do this one change. I do like this change (good catch) but it should be a single PR. Do all the changes in this PR (I will close the others)

[verdammelt]

Must complete this change - all affected files, not just documentation.