Bug 32769: Standardize structure around action fieldsets in administration

Bug 32769: Standardize structure around action fieldsets in administration

This patch updates administration templates so that fieldsets with the
"action" class are placed outside the form's main fieldset.

To test, apply the patch and check the following pages to confirm that
the forms look correct:

- Administration
   -> Keyboard shortcuts
   -> Audio alerts
   -> Share content with Mana KB
      - When the ManaToken system preference is empty, the page should
        have two forms with updated fieldsets: the form with the "Use
        Mana KB..." field and a "Configure Mana KB" form.
      - With a ManaToken defined the second form should be one labeled
        "Mana KB token."
   -> Budgets
      - Click on a budget which has existing funds.
      - In the page toolbar click Planning -> Plan by libraries.
      - Check the forms in the sidebar.
   -> System preferences ->  OverDriveAuthName
      - Follow the link to "OverDrive library authnames table" and check
        the form on that page.

Signed-off-by: Matt Blenkinsop <matt.blenkinsop@ptfs-europe.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit 622581e5bfd8c42082bba6ee8a54e3249ea78c5d)
Signed-off-by: Jacob O'Mara <jacob.omara@ptfs-europe.com>