Revert "Remove an empty div"

Summary: This reverts commit a896494ce582a238ce130efc87b68cd1b301580e which caused T6852

Test Plan: Check, for example, the position of the 'Save Account Settings' button

Reviewers: joshuaspence, Blessed Reviewers, epriestley

Reviewed By: Blessed Reviewers, epriestley

Subscribers: Korvin, epriestley

Maniphest Tasks: T6852

Differential Revision: https://secure.phabricator.com/D11157