refactor configd calls, part of this discussion : https://github.com/opnsense/core/commit/71ff705e01b0a8b95b4a41973b579a468d0a8c7c#commitcomment-10597568

Signing is going on in the background, syncing the fingerprint
into the system, but the actual verification will wait until
the next major release.  This is pretty neat in any case...

floating pages such as this one into a 'Lobby' category?  Discuss.  :)

* Update the crash report version information.

* Tweak the form layout and remove HTML errors.

* Show appropriate message instead instead of redirect.

* Rework POST actions for style and sanity.

* Refactor crash report link into a function so it could be called
  from any page if desired.

* Do not show a crash report when there is none.

While there, move errors to where they should be checked.

(Hint: as early as possible.)