IQSS/11800 Fix GB - Request Access errors

[qqmyers]

What this PR does / why we need it: As noted in the issue, while #11203 fixed some issues related to whether guestbook entries are displayed properly depending on whether a guestbook is enabled and whether guesstbook-at-request is enabled, it introduced a couple new issues. This PR should resolve those.

Which issue(s) this PR closes:

• Closes Changes to Guestbook functionality in v6.6 result in the guestbook functionality not working properly due to https://github.com/IQSS/dataverse/pull/11203 #11800
• May close Users sometimes see "Guestbook Entry At Access Request" guestbooks when downloading public files #11835

Special notes for your reviewer:

Suggestions on how to test this: There are three variables:

• Whether a guestbook is in use for a dataset
• Whether guestbook at request is enabled (or guestbooks appear at download)
• Whether terms of access are set and thus need to be shown at request access and download time.

There are also multiple ways to request access and download:

• selecting files in the dataset file table and using the main menu
• using the individual file menu in the dataset file table
• from the file page

Nominally the code should do the right thing in all cases - guestbook questions should only appear when a guestbook is in use and only when requesting access (gb at request set) or download time - regardless of how the user makes those request access/download actions.

This PR should nominally only fix the two cases in #11800, but regression testing all cases is probably worthwhile (and would have caught these issues in #11203) - giving this a size 10 for QA testing.

Does this PR introduce a user interface change? If mockups are available, please link/include them here:

Is there a release notes update needed for this change?: inc.

Additional documentation:

[coveralls]

coverage: 23.541% (+0.002%) from 23.539%
when pulling ef858a9 on QualitativeDataRepository:IQSS/11800-GB-request_access_errors
into f79a02b on IQSS:develop.