Bug 33662: Add link to acq advanced search to acq navigation

Bug 33662: Add link to acq advanced search to acq navigation

Right now 3 clicks are needed to open the advanced search page
in the acquisitions module.

This adds a link to the advanced search to the left hand
module navigation.

To test:
* Go to acquisitions
* Verify the way is long to advanced search:
  At the top: Orders search > config icon > advanced search link
* Apply patch
* Notice new 'Order search' link on the left
* Verify it's way shorter now :)

Sponsored-by: The Research University in the Helmholtz Association (KIT)
Signed-off-by: Michaela Sieber <michaela.sieber@kit.edu>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
  Renamed link from 'Advanced search' to 'Order search'
  Adjusted test plan

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>