CSS: Do not wrap policy-header-callout content in phui-header-subheader
Summary:
On small screens, the view policy tag in the page subheader (e.g. "Public", "All Users", "Custom Policy", "Administrators") can get wrapped across three lines.
Avoid that and keep the tag on one line.
Closes T16287
Test Plan:
Look at tags in subheaders on object pages in all three different CSS layouts that Phorge offers, ideally with "long" tags
* http://phorge.localhost/p/user/ (e.g. with a user who also has MFA enabled)
* http://phorge.localhost/diffusion/1/
* http://phorge.localhost/book/flavor/
* http://phorge.localhost/T1 (e.g. with Story Point tags also enabled)
* http://phorge.localhost/D1
* http://phorge.localhost/phame/blog/view/1/
* http://phorge.localhost/w/somepage/
* http://phorge.localhost/book/dev/class/PhorgeI18nTestCase/#method/key (Diviner; the "Inherited" tag uses this CSS)
* http://phorge.localhost/M1
* http://phorge.localhost/F1
* http://phorge.localhost/B1
* http://phorge.localhost/C1
* http://phorge.localhost/uiexample/view/PHUIBoxExample/ ("Fancy Box" example at the bottom)
Reviewers: O1 Blessed Committers, mainframe98
Reviewed By: O1 Blessed Committers, mainframe98
Subscribers: tobiaswiese, valerio.bozzolan, Matthew, Cigaryno
Maniphest Tasks: T16287
Differential Revision: https://we.phorge.it/D26736