[ticket/12478] Re-add contact field events in ucp_pm_viewmessage.html.

PHPBB3-12478
[ticket/12478] Add contact field events to viewtopic_body.html.

PHPBB3-12478
Merge pull request #2385 from prototech/ticket/12478

Add contact field before/after events.
[ticket/12482] Fixed undefined variable: data.

PHPBB3-12482
Merge pull request #2389 from prototech/ticket/12482

[ticket/12482] Fixed undefined variable: data.

* prototech/ticket/12482:
  [ticket/12482] Fixed undefined variable: data.