Dashboards followups 2 (#15107)

adding min height and widths on each chart

this Pr address this followups - 
-
https://github.com/twentyhq/core-team-issues/issues/1710#issuecomment-3405312108
- <img width="843" height="38" alt="Screenshot 2025-10-15 at 15 19 27"
src="https://github.com/user-attachments/assets/f33da21f-a605-40f9-b7fa-02be9dff5908"
/>
- <img width="830" height="42" alt="Screenshot 2025-10-15 at 15 19 40"
src="https://github.com/user-attachments/assets/bf6f3783-b5cc-44c0-94a2-029a489c852e"
/>

video QA
before:


https://github.com/user-attachments/assets/28262a7b-531f-4dcb-9047-c587fe3d8af6


after: 


https://github.com/user-attachments/assets/b0fdbc18-3a7e-4c85-98b6-5799d7207bb4

packages/twenty-front/src/modules/page-layout/hooks/useCreatePageLayoutIframeWidget.ts

@@ -1,3 +1,4 @@
+import { DEFAULT_WIDGET_SIZE } from '@/page-layout/constants/DefaultWidgetSize';
 import { PageLayoutComponentInstanceContext } from '@/page-layout/states/contexts/PageLayoutComponentInstanceContext';
 import { pageLayoutCurrentLayoutsComponentState } from '@/page-layout/states/pageLayoutCurrentLayoutsComponentState';
 import { pageLayoutDraftComponentState } from '@/page-layout/states/pageLayoutDraftComponentState';
@@ -59,9 +60,11 @@ export const useCreatePageLayoutIframeWidget = (
 
         const widgetId = uuidv4();
         const defaultSize = { w: 6, h: 6 };
+        const minimumSize = DEFAULT_WIDGET_SIZE.minimum;
         const position = getDefaultWidgetPosition(
           pageLayoutDraggedArea,
           defaultSize,
+          minimumSize,
         );
 
         const newWidget = createDefaultIframeWidget(