Link command menu items to specific page layout (#19706)

- Add a `pageLayoutId` foreign key to `CommandMenuItem`, allowing
command menu items to be scoped to a specific page layout instead of
being globally available
- Filter command menu items by the current page layout on the frontend.
Items with a `pageLayoutId` only appear when viewing that layout, while
items without one remain globally visible
- Create an effect to track the current page layout ID
- Include a seed example: a "Show Notification" command pinned to the
Star history standalone page layout

---------

Co-authored-by: Charles Bochet <charles@twenty.com>

packages/twenty-server/src/engine/core-modules/application/application-manifest/converters/from-command-menu-item-manifest-to-universal-flat-command-menu-item.util.ts

@@ -44,6 +44,7 @@ export const fromCommandMenuItemManifestToUniversalFlatCommandMenuItem = ({
     payload: null,
     hotKeys: null,
     workflowVersionId: null,
+    pageLayoutUniversalIdentifier: null,
     createdAt: now,
     updatedAt: now,
   };