feat: migrate nextjs to rr7

apps/remix/app/entry.client.tsx

@@ -0,0 +1,48 @@
+import { StrictMode, startTransition, useEffect } from 'react';
+
+import { i18n } from '@lingui/core';
+import { detect, fromHtmlTag } from '@lingui/detect-locale';
+import { I18nProvider } from '@lingui/react';
+import posthog from 'posthog-js';
+import { hydrateRoot } from 'react-dom/client';
+import { HydratedRouter } from 'react-router/dom';
+
+import { extractPostHogConfig } from '@documenso/lib/constants/feature-flags';
+import { dynamicActivate } from '@documenso/lib/utils/i18n';
+
+function PosthogInit() {
+  const postHogConfig = extractPostHogConfig();
+
+  useEffect(() => {
+    if (postHogConfig) {
+      posthog.init(postHogConfig.key, {
+        api_host: postHogConfig.host,
+        capture_exceptions: true,
+      });
+    }
+  }, []);
+
+  return null;
+}
+
+async function main() {
+  const locale = detect(fromHtmlTag('lang')) || 'en';
+
+  await dynamicActivate(locale);
+
+  startTransition(() => {
+    hydrateRoot(
+      document,
+      <StrictMode>
+        <I18nProvider i18n={i18n}>
+          <HydratedRouter />
+        </I18nProvider>
+
+        <PosthogInit />
+      </StrictMode>,
+    );
+  });
+}
+
+// eslint-disable-next-line @typescript-eslint/no-floating-promises
+main();