Show different messages and placeholder on ticket(s) deletions

Fix search backend to use the new statuses

Always clear staff's drafts on successful reply
Remove errant reload

Cleanup status change form
Add resolve to ticket ticket view
Use the new status table when checking for overdue

Unify use of modal dialog
Make popup dialog graggable

Empty the popup container and show loading spinner
on-load hide the spinner and show the content

Delete tickets for realz when set to 'deleted' status. This commit will be
partially reverted once data retention plugin is added.

Statuses with tickets cannot be deleted
Fix orm to class gracefully when joins are not inspected
Add create date to new statuses

Fix cases where first item added via addSubMenu got deleted.

Move ticket status change to unified backend.

Messages are extracted on post-action redirect.

Crowdin recreates YAML files with indent specifications which Spyc does not
currently handle:

body: |2
  body contents written
  here with 2 leading spaces

This is part of the Yaml spec after 1.0

backportme