Bug 32070: Consistent classes for primary buttons: Acquisitions

Bug 32070: Consistent classes for primary buttons: Acquisitions

This patch makes changes the button markup in Acquisitions templates
so that all submit buttons and any buttons that should should be styled
as primary buttons have the Bootstrap class "btn btn-primary."

To test, apply the patch and view pages in Acquisitions to confirm
that everything looks correct. In most cases there are no visible
changes.

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>