Fix redirections when deleting screns

packages/builder/src/pages/builder/app/[application]/design/[screenId]/_layout.svelte

@@ -12,7 +12,7 @@
     urlParam: "screenId",
     stateKey: "selectedScreenId",
     validate: id => $store.screens.some(screen => screen._id === id),
-    fallbackUrl: "../../",
+    fallbackUrl: "../../design",
     store,
     routify,
   })

packages/builder/src/pages/builder/app/[application]/design/[screenId]/screens/_components/ScreenDropdownMenu.svelte

@@ -66,7 +66,6 @@
   const deleteScreen = async () => {
     try {
       await store.actions.screens.delete(screen)
-      $goto("../")
       notifications.success("Deleted screen successfully.")
     } catch (err) {
       notifications.error("Error deleting screen")