Bug 33003: Show the vendor type on vendor detail page

Bug 33003: Show the vendor type on vendor detail page

When using an authorised value VENDOR_TYPE for the
vendor type, we should show the AV description
everywhere instead of the code. It already works on
the vendor search, but not on the vendor detail page.
With this patch it will also work there.

To test:
1. Add at least one authorized value in VENDOR_TYPE
   1.1. Go to Administration > Authorized values
   1.2. Search for VENDOR_TYPE
   1.3. Click 'Add'
   1.4. Fill out the form
        - Authorized value: BOOK
        - Description: Print books
   1.5. Click 'Save'
2. Add a new vendor
   2.1. Go to Acquisitions
   2.2. Click 'New vendor'
   2.3. Fill out the form
        - Name: ABC Bookstore
        - Vendor type: Print books
   2.4. Click 'Save'
3. Go to the vendor page
   3.1. Click on the vendor name
   --> The value in "Type" is BOOK, it should be "Print books"
4. Apply patch
   4.1. Repeat test, now it should show the description

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Caroline Cyr La Rose <caroline.cyr-la-rose@inlibro.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Tomás Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>