Ensure Summary list actions descriptions are consistent

We know “of each” isn’t our favourite wording, but the two now match:

1. The actions of each row.
2. The actions of each summary card.

packages/govuk-frontend/src/govuk/components/summary-list/summary-list.yaml

@@ -109,7 +109,7 @@ params:
       - name: actions
         type: object
         required: false
-        description: Data for the summary card actions
+        description: The actions of each summary card.
         params:
           - name: items
             type: array