Load permissions for statistics

aleksis/apps/alsijil/frontend/components/coursebook/statistics/statistics.graphql

@@ -65,6 +65,8 @@ query participationsOfPerson($person: ID!) {
         colourBg
       }
     }
+    canEdit
+    canDelete
   }
 }
 
@@ -98,6 +100,8 @@ query personalNotesForPerson($person: ID!) {
         colourBg
       }
     }
+    canEdit
+    canDelete
   }
 }