Add New Widget page layout header information (#16098)

## Before

<img width="822" height="384" alt="CleanShot 2025-11-26 at 16 22 12@2x"
src="https://github.com/user-attachments/assets/014e2efc-c4e4-4140-b473-f09ac56855b5"
/>

## After

<img width="818" height="352" alt="CleanShot 2025-11-26 at 16 21 53@2x"
src="https://github.com/user-attachments/assets/5aa961a9-7d06-47b7-ad5d-6b5b9714a0d8"
/>

packages/twenty-front/src/modules/command-menu/components/hooks/usePageLayoutHeaderInfo.ts

@@ -8,6 +8,7 @@ import { isDefined } from 'twenty-shared/utils';
 import {
   IconAppWindow,
   IconFrame,
+  IconPlus,
   type IconComponent,
 } from 'twenty-ui/display';
 import { type PageLayoutWidget } from '~/generated/graphql';
@@ -145,6 +146,18 @@ export const usePageLayoutHeaderInfo = ({
       };
     }
 
+    case CommandMenuPages.PageLayoutWidgetTypeSelect: {
+      return {
+        headerIcon: IconPlus,
+        headerIconColor: iconColor,
+        headerType: '',
+        title: t`New widget`,
+        isReadonly: true,
+        tab: undefined,
+        widgetInEditMode: undefined,
+      };
+    }
+
     default:
       return null;
   }