refactor(cors): simplify allowedOrigins by using a separate variable

Author: Wcoder547

Back-end/constants/config.js

@@ -1,13 +1,15 @@
+const allowedOrigins = [
+  "http://localhost:5173",
+  "http://localhost:4173",
+  process.env.CLIENT_URL,
+].filter(Boolean);
+
 const corsOptions = {
-  origin: [
-    "http://localhost:5173",
-    "http://localhost:4173",
-    process.env.CLIENT_URL,
-  ],
+  origin: allowedOrigins,
   methods: ["GET", "POST", "PUT", "DELETE"],
   credentials: true,
 };
 
 const CHATTU_TOKEN = "chattu-token";
 
-export { corsOptions, CHATTU_TOKEN };
+export { corsOptions, CHATTU_TOKEN };