IBX-9941: Renamed ibexa_preferences into ibexa_user_preference (#22)

Author: ViniTou

src/contracts/Resources/test_data.yaml

@@ -855,7 +855,7 @@ ibexa_notification:
   - { id: 4, owner_id: 14, is_pending: 1, type: 'Workflow:Review', created: 1530005852, data: null }
   - { id: 5, owner_id: 14, is_pending: 1, type: 'Workflow:Review', created: 1530009452, data: null }
   - { id: 6, owner_id: 10, is_pending: 0, type: 'Workflow:Review', created: 1530009452, data: null }
-ibexa_preferences:
+ibexa_user_preference:
   - { id: 1, name: setting_1, user_id: 14, value: value_1 }
   - { id: 2, name: setting_2, user_id: 14, value: value_2 }
   - { id: 3, name: setting_3, user_id: 14, value: value_3 }