Bug 26190: Allow to close a basket with only cancelled order lines

At the moment there are several cases, when closing a basket is not
possible:
- when there are no order lines in it
- when there are order lines with uncertain prices
- when the basket is marked as a standing order

The first case wasn't checked correctly as only pending/received
orders would be counted, but not cancelled orders.

To test:
- Create a basket
- Create an order line
- Verify the "close this basket" button shows
- Cancel the order line - the button disappears
- Apply the patch
- Verify the button appears and works now
- Create another basket - make sure you cannot close it
  without order lines
- Create an order line with uncertain price checked
  - you cannot close it
- Resolve the uncertain price - you can now close the basket.

Signed-off-by: Séverine QUEUNE <severine.queune@bulac.fr>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>

acqui/basket.pl

@@ -423,7 +423,7 @@ if ( $op eq 'list' ) {
         #
         # (The template has another implicit restriction that the order cannot be closed if there
         # are any orders with uncertain prices.)
-        unclosable           => @orders ? $basket->{is_standing} : 1,
+        unclosable           => @orders || @cancelledorders ? $basket->{is_standing} : 1,
         has_budgets          => $has_budgets,
         duplinbatch          => $duplinbatch,
         csv_profiles         => [ Koha::CsvProfiles->search({ type => 'sql', used_for => 'export_basket' }) ],