chore(deps): update nextjs monorepo to v16 (major)

examples/nextjs-app/app/components/AppShellBar.tsx

@@ -29,7 +29,7 @@ const THEMES = [
 export function AppShellBar() {
   const router = useRouter();
   const pathname = usePathname();
-  const popoverOpenerRef = useRef<ButtonDomRef | undefined>(undefined);
+  const popoverOpenerRef = useRef<ButtonDomRef>(null);
   const [popoverOpen, setPopoverOpen] = useState(false);
   const [currentTheme, setCurrentTheme] = useState(getTheme);
 
@@ -64,6 +64,7 @@ export function AppShellBar() {
       <ResponsivePopover
         className={classes.popover}
         open={popoverOpen}
+        /* eslint-disable-next-line react-hooks/refs */
         opener={popoverOpenerRef.current}
         onClose={() => {
           setPopoverOpen(false);

examples/nextjs-app/eslint.config.mjs

@@ -0,0 +1,14 @@
+import { defineConfig } from 'eslint/config';
+import nextCoreWebVitals from 'eslint-config-next/core-web-vitals';
+import nextTypescript from 'eslint-config-next/typescript';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = path.dirname(__filename);
+
+export default defineConfig([
+  {
+    extends: [...nextCoreWebVitals, ...nextTypescript],
+  },
+]);