Replaced server action with api route.

src/app/api/config/route.ts

@@ -0,0 +1,22 @@
+import { parseRequest } from '@/lib/request';
+import { json } from '@/lib/response';
+
+export async function GET(request: Request) {
+  const { error } = await parseRequest(request, null, { skipAuth: true });
+
+  if (error) {
+    return error();
+  }
+
+  return json({
+    cloudMode: !!process.env.CLOUD_URL,
+    cloudUrl: process.env.CLOUD_URL,
+    faviconUrl: process.env.FAVICON_URL,
+    linksUrl: process.env.LINKS_URL,
+    pixelsUrl: process.env.PIXELS_URL,
+    privateMode: !!process.env.PRIVATE_MODE,
+    telemetryDisabled: !!process.env.DISABLE_TELEMETRY,
+    trackerScriptName: process.env.TRACKER_SCRIPT_NAME,
+    updatesDisabled: !!process.env.DISABLE_UPDATES,
+  });
+}