Bug 32807: Fetch count instead of all entries for agreements and licenses

Bug 32807: Fetch count instead of all entries for agreements and licenses

To list agreements and licenses we are retrieving the whole list to
simply know if at least one exists (and display the table that will
fetch the X first elements to display).

We should call count instead.

Test plan:
List agreements and licenses.
If none exists, the table is not displayed but a "There are no...
defined" message instead.
If at least one exists the table must be there

Signed-off-by: Matt Blenkinsop <matt.blenkinsop@ptfs-europe.com>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>