Fix dev/core#5278 - Missing page title on angular pages

[colemanw]

Overview

Fixes missing page title on CMSs other than D7.

Before

Angular pages such as FormBuilder forms display "CiviCRM" as the title on D9, WP & Joomla (although it works correctly on D7).

After

Correct title displayed.

Technical Details

This regressed probably due to a combination of #28560 and #29694

[civibot]

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[demeritcowboy]

I've put merge-ready only because I can't reproduce the problem in drupal 10, but I do see it on wpmaster.demo and a wp test site https://test.civicrm.org/job/CiviCRM-Manual/298/console built with the patch applied fixes it.