Improve AppError boundaries (#11107)

## What

This PR aims to make sure all application exceptions are captured
through react-error-boundaries

Once merged we will have:
- Root Level: AppErrorBoundary at the highest level (full screen) ==>
this one needs to be working in any case, not relying on Theme, was not
working
- Route Level: AppErrorBoundary in DefaultLayout (full screen) ==> this
was missing and it seems that error are not propagated outside of the
router, making errors triggered in CommandMenu or NavigationDrawer
missing
- Page Level: AppErrorBoundary in DefaultLayout write around the Page
itself (lower than CommandMenu + NavigationDrawer)
- Manually triggered: example in ClientConfigProvider

## Screenshots

App level (ex throw in IconsProvider)
<img width="1512" alt="image"
src="https://github.com/user-attachments/assets/18a14815-a203-4edf-b931-43068c3436ec"
/>

Route level (ex throw in CommandMenu)
<img width="1512" alt="image"
src="https://github.com/user-attachments/assets/ca066627-14c7-438e-a432-f0999a1f3b84"
/>

Page level (ex throw in RecordTable)
<img width="1512" alt="image"
src="https://github.com/user-attachments/assets/ffeaa935-02af-4762-8859-7a0ccf8b77e1"
/>

Manually Triggered (clientConfig, ex when backend is not up)
<img width="1512" alt="image"
src="https://github.com/user-attachments/assets/062d6d84-097a-4ed9-b6ce-763b8c27c659"
/>

packages/twenty-front/src/modules/error-handler/components/AppPageErrorFallback.tsx

@@ -0,0 +1,27 @@
+import { AppErrorDisplay } from '@/error-handler/components/internal/AppErrorDisplay';
+import { AppErrorDisplayProps } from '@/error-handler/types/AppErrorDisplayProps';
+import { PageBody } from '@/ui/layout/page/components/PageBody';
+import { PageContainer } from '@/ui/layout/page/components/PageContainer';
+import { PageHeader } from '@/ui/layout/page/components/PageHeader';
+
+type AppPageErrorFallbackProps = AppErrorDisplayProps;
+
+export const AppPageErrorFallback = ({
+  error,
+  resetErrorBoundary,
+  title = 'Sorry, something went wrong',
+}: AppPageErrorFallbackProps) => {
+  return (
+    <PageContainer>
+      <PageHeader />
+
+      <PageBody>
+        <AppErrorDisplay
+          error={error}
+          resetErrorBoundary={resetErrorBoundary}
+          title={title}
+        />
+      </PageBody>
+    </PageContainer>
+  );
+};