Bug 31768: Add tools toolbar to tags page

Bug 31768: Add tools toolbar to tags page

The tags tool was missing the toolbar on the left side.
With the filters, this patch adds the toolbar below, like
we do on other pages like HTML customizations.

To test:
* Go to Tools > Tags
* Verify no toolbar
* Apply patch
* Verify toolbar is now present
* Compare to other tool pages
* Sign off :)

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit 2b63498545b41929d26ab9f3fbeecfa33e277cc3)
Signed-off-by: Jacob O'Mara <jacob.omara@ptfs-europe.com>
(cherry picked from commit a464971441887bdcadb170edef06faf68b5cd6c5)

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
(cherry picked from commit b0025d14d866f786c453a36c62f33d9bdcedc829)
Signed-off-by: Arthur Suzuki <arthur.suzuki@biblibre.com>