Show all child pages on Teams page.

This will show all child pages on the Teams page instead of relying on the option on https://quality.mozilla.org/wp-admin/options-reading.php is changed down to 4 (or fewer). Changing the setting is necessary to fix the pagination error at https://bugzilla.mozilla.org/show_bug.cgi?id=1050750

Let me know if there are any questions/concerns!