Create the Dashboard record show page (#14423)

Closes https://github.com/twentyhq/core-team-issues/issues/1438

- Reorganized PageLayout module
- Created `DashboardRenderer` and `PageLayoutRenderer`
- Created stories for the `PageLayoutRenderer`
- Refactored the Widget components


https://github.com/user-attachments/assets/27e9ac8f-b237-4c21-8494-3fab6d65af3a

packages/twenty-front/src/modules/page-layout/utils/getDefaultWidgetPosition.ts

@@ -0,0 +1,17 @@
+import { type GridBounds } from './calculateGridBoundsFromSelectedCells';
+
+export const getDefaultWidgetPosition = (
+  draggedArea: GridBounds | null,
+  defaultSize: { w: number; h: number },
+): GridBounds => {
+  if (draggedArea !== null) {
+    return draggedArea;
+  }
+
+  return {
+    x: 0,
+    y: 0,
+    w: defaultSize.w,
+    h: defaultSize.h,
+  };
+};