Bug 32931: Fix translatability issues on 'new agreement' form

Bug 32931: Fix translatability issues on 'new agreement' form

This fixes the "Yes" and "No" options and "License info" placeholder.

To get to the options:
1. Enable the ERMModule system preference
2. Go to E-resource management
3. Click "Agreements"
4. Click "New agreement"
   --> Field "Is perpetual", options are Yes and No
   --> At the bottom of the form "License info" with "License info"
       within the input field
5. Install (complete) language, verify those are not translated
6. Apply patch
7. Update po files
8. Verify strings exist for this file, translate if necessary
9. Re-install language
10. Verify strings are now translated

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