Fix Preview URL: Suppress breadcrumbs

[sekmiller]

What this PR does / why we need it: Fixes an bug introduced after preview url update

Which issue(s) this PR closes:

• Closes Feature Request: Accessing a dataset via a private url should hide the hierarchy of Dataverses #11085

Special notes for your reviewer:

Suggestions on how to test this: remember, that if you are logged in with privileges the breadcrumbs will show.

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?:

Additional documentation:

[qqmyers]

Didn't test but I see that the header responds to this param and it was not set for the dataset page and was for the file page.
I'll approve - only question is whether it should have a one line release note.

[sekmiller]

@qqmyers I can add a release note, but I'm going to advocate for a patch since it's just one line in an xhtml file and a user noticed it.

[landreev]

@sekmiller

I can add a release note, but I'm going to advocate for a patch since it's just one line in an xhtml file and a user noticed it.

I'm happy to both test/merge, and to patch it in our own prod. But I agree with @qqmyers that it would be worth mentioning in a one-sentence release note as well, for everybody else. The bug seems important enough.

[landreev]

@sekmiller
Great, thanks!
I've added the word "anonymized" there, merging now.
I will patch the xhtml page in prod. shortly. (it will take effect on each node next time payara is restarted there)