Bug 29732: Check alert in cataloguing authorities should be a static message

Bug 29732: Check alert in cataloguing authorities should be a static message

This patch modifies the authority record editor so that form
validation errors are collected in a static "dialog" at the top of the
page instead of showing in a transient JavaScript alert.

The text of the message is roughly the same as it was in the alert, and
links have been added so that the user can click to jump directly to the
field referenced.

If the user scrolls down away from the static error message, a button
appears in the floating toolbar to jump back to the message.

- Go to Authorities and create a new authority record using a framework
  which has multiple mandatory fields defined
  (e.g. an unmodified default framework)
- Without entering anything in mandatory fields, click the "Save"
  button.
- You should see a message box appear at the top of the page.
  - It should list each missing mandatory subfield and tag, each with a
    "Go to field" link next to it.
  - Clicking the "Go to field" link should switch you to the correct tab
    and scroll the mandatory field into view.
- When you have scrolled down far enough for the error messages to be
  offscreen, an "Errors" button should appear in the floating toolbar.
  Clicking it should scroll the box back into view.
- If you fix some but not all of the missing mandatory fields the
  message should update with only the current issues.
- Confirm that the record saves when all issues are resolved.

Signed-off-by: Phil Ringnalda <phil@chetcolibrary.org>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit 5d572ec461adc2693cd3aa35d5180006636416cb)
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>