Add 'post date' (which we're using for training date) to landing page simple cards

Yes we know that we're going to have to make a content type (or use event?) for trainings
'cause this is ridiculous.

Ref #221

config/sync/core.entity_view_display.node.landing_page.simple_card.yml

@@ -34,9 +34,15 @@ third_party_settings:
     regions:
       left:
         - node_title
+        - node_post_date
       right:
         - field_image
     fields:
+      node_post_date:
+        plugin_id: node_post_date
+        weight: 1
+        label: hidden
+        formatter: ds_post_date_medium
       node_title:
         plugin_id: node_title
         weight: 0
@@ -56,7 +62,7 @@ mode: simple_card
 content:
   field_image:
     type: responsive_image
-    weight: 1
+    weight: 2
     region: right
     label: hidden
     settings: