Use better text from other file, which has now been corrected

[PhilETaylor]

s/Form Field to load a list of content authors/Field to load a list of all users that have logged actions/

Use "Field to load a list of all users that have logged actions" which was the text in the form field for the extension dropdown as that makes more sense here, I have already corrected the extensions dropdown text too

[Quy]

I have tested this item ✅ successfully on 6598395

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