IFrame widget improvements (#15483)

changes - 
- make iframe side panel to match others -- ie use SidePanelHeader for
title
- make url optional in configuration to match that of the other widgets
(allow partial saves) - render No data status when error or no url
- split widget sizes into two -- graph widget sizes and widget sizes
(graph widgets are a subset of chart widgets)

packages/twenty-front/src/modules/command-menu/constants/CommandMenuPagesConfig.tsx

@@ -5,7 +5,7 @@ import { CommandMenuCalendarEventPage } from '@/command-menu/pages/calendar-even
 import { CommandMenuMessageThreadPage } from '@/command-menu/pages/message-thread/components/CommandMenuMessageThreadPage';
 import { CommandMenuPageLayoutGraphFilter } from '@/command-menu/pages/page-layout/components/CommandMenuPageLayoutGraphFilter';
 import { CommandMenuPageLayoutGraphTypeSelect } from '@/command-menu/pages/page-layout/components/CommandMenuPageLayoutGraphTypeSelect';
-import { CommandMenuPageLayoutIframeConfig } from '@/command-menu/pages/page-layout/components/CommandMenuPageLayoutIframeConfig';
+import { CommandMenuPageLayoutIframeSettings } from '@/command-menu/pages/page-layout/components/CommandMenuPageLayoutIframeSettings';
 import { CommandMenuPageLayoutWidgetTypeSelect } from '@/command-menu/pages/page-layout/components/CommandMenuPageLayoutWidgetTypeSelect';
 import { CommandMenuPageLayoutTabSettings } from '@/command-menu/pages/page-layout/components/CommandMenuPageLayoutTabSettings';
 import { CommandMenuMergeRecordPage } from '@/command-menu/pages/record-page/components/CommandMenuMergeRecordPage';
@@ -55,8 +55,8 @@ export const COMMAND_MENU_PAGES_CONFIG = new Map<
     <CommandMenuPageLayoutGraphFilter />,
   ],
   [
-    CommandMenuPages.PageLayoutIframeConfig,
-    <CommandMenuPageLayoutIframeConfig />,
+    CommandMenuPages.PageLayoutIframeSettings,
+    <CommandMenuPageLayoutIframeSettings />,
   ],
   [
     CommandMenuPages.PageLayoutTabSettings,