feat: Add ability to link tasks to cards

client/src/models/List.js

@@ -137,6 +137,10 @@ export default class extends BaseModel {
             cardModel.update({
               isClosed,
             });
+
+            cardModel.linkedTasks.update({
+              isCompleted: isClosed,
+            });
           });
         }
 
@@ -162,6 +166,10 @@ export default class extends BaseModel {
               cardModel.update({
                 isClosed,
               });
+
+              cardModel.linkedTasks.update({
+                isCompleted: isClosed,
+              });
             });
           }
         } else {