Bug 20372: Correct toolbar markup on some pages

Bug 20372: Correct toolbar markup on some pages

Differences in markup around some toolbars has the potential to create
CSS styling problems. This patch changes the markup to be consistent
with other instances of <div id="toolbar"></div>

To test, apply the patch and view these pages:

- Course reserves (main page)
- Course reserves -> Course detail page
- Reports -> Dictionary

On each of these pages the toolbar should look correct.

Signed-off-by: Claire Gravely <claire.gravely@bsz-bw.de>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>