Bug 28041: Improve breadcrumbs and headings on label creator pages

Bug 28041: Improve breadcrumbs and headings on label creator pages

This patch changes various label creator templates so that breadcrumbs
menus and headings are more specific to each operation.

To test, apply the patch and confirm that headings, page titles, and
breadcrumbs menus are correct for the various pages:

- New -> Label batch: "Label creator -> Batches -> New label batch."
- New -> Layout: "Label creator -> Layouts -> New label layout."
- New -> Label template: "Label creator -> New label template."
- New -> Printer profile: "Label creator -> New printer profile."
- New -> Barcode range: "Label creator -> Print barcode range."
- Manage -> Label batch -> Edit: "Label creator -> Batches -> Edit
  label batch X."
- Manage -> Layout -> Edit: "Label creator -> Layouts -> Edit label
  layout X."
- Manage -> Label templates -> Edit: "Label creator -> Templates -> Edit
  label template X."
- Manage -> Printer profiles -> Edit: "Label creator -> Profiles -> Edit
  printer profile X."

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>