Add compact view to calendar (#14527)

<img width="1263" height="785" alt="Screenshot 2025-09-16 at 11 44 44"
src="https://github.com/user-attachments/assets/dc61e69f-b887-4a4d-9f9c-e50ffa076082"
/>
<img width="1263" height="785" alt="Screenshot 2025-09-16 at 11 43 45"
src="https://github.com/user-attachments/assets/2dd917b3-6e6d-40f2-bb10-6c82de83c15d"
/>

packages/twenty-front/src/modules/views/utils/convertUpdateViewInputToCore.ts

@@ -23,7 +23,7 @@ export const convertUpdateViewInputToCore = (
     ...(view.name && { name: view.name }),
     ...(view.icon && { icon: view.icon }),
     ...(view.position && { position: view.position }),
-    ...(view.isCompact && { isCompact: view.isCompact }),
+    ...(isDefined(view.isCompact) && { isCompact: view.isCompact }),
     ...(view.kanbanAggregateOperation && {
       kanbanAggregateOperation: view.kanbanAggregateOperation,
     }),