Create UI: Fee Summary blocks actions on some pages

In some scenarios, the Fee Summary wraps to the bottom of the page and incorrectly positions itself such that the page cannot be scrolled to the bottom and, therefore, the action buttons (save, next, cancel) cannot be selected.

This is seen on the Add People and Roles page and the Create Share Structure page, when the screen is narrow enough to cause the Fee Summary to wrap and the page content is short enough (ie, screen is tall enough).

If the width and/or height of the screen (window) is increased then this problem no longer occurs (although the Fee Summary positioning is far from ideal).

This Fee Summary issue does not happen in the Filings UI (AR/COA/COD filings), so the assignee can look there to see how this component is attached (see `relative-element-selector`) and try to do the same thing.