Adopt the shared v2 Toaster from the auth branch

Replace the minimal placeholder Toaster with the richer implementation
already built on compliance-portal-auth (per-type icons plus warning and
info variants, and its stories). Both branches now share the exact same
component and app-root wiring, so they converge instead of colliding
when they merge. Align App.tsx provider ordering to match.

Signed-off-by: Émile Ré <emile@probo.com>

apps/compliance-portal/src/App.tsx

@@ -27,11 +27,11 @@ import { router } from "#/routes";
 
 export function App() {
   return (
-    <RelayProvider>
-      <Toast.Provider>
+    <Toast.Provider>
+      <RelayProvider>
         <RouterProvider router={router} />
-        <Toaster />
-      </Toast.Provider>
-    </RelayProvider>
+      </RelayProvider>
+      <Toaster />
+    </Toast.Provider>
   );
 }