4.8.16 test (#3442)

* perf: simple app save

* fix: notify config i18n

* perf: service side props render

* perf: model selector

* update doc

packages/web/common/system/nextjs.ts

@@ -0,0 +1,15 @@
+import { I18nNsType } from '../../types/i18next';
+import { serverSideTranslations } from 'next-i18next/serverSideTranslations';
+
+export const serviceSideProps = async (content: any, ns: I18nNsType = []) => {
+  const lang = content.req?.cookies?.NEXT_LOCALE || content.locale;
+  const extraLng = content.req?.cookies?.NEXT_LOCALE ? undefined : content.locales;
+
+  // Device size
+  const deviceSize = content.req?.cookies?.NEXT_DEVICE_SIZE || 'pc';
+
+  return {
+    ...(await serverSideTranslations(lang, ['common', ...ns], null, extraLng)),
+    deviceSize
+  };
+};