chore: refactor dotenv configuration

- Removed dotenv configuration from src/app.ts to streamline the app initialization.
- Moved dotenv configuration to a dedicated src/utils/envConfig.ts file for better organization and maintainability.
- This change enhances code clarity by separating environment variable management from the main application logic.

Author: JC-Coder

src/app.ts

@@ -1,11 +1,9 @@
 import express from "express";
-import dotenv from "dotenv";
 import cors from "cors";
 import requestLogger from "./middlewares/requestLogger";
 import errorRoutes from "./routes/errorRoutes";
 import integrationRoutes from "./routes/integrations";
 import tickRoute from "./routes/tick";
-dotenv.config();
 
 const app = express();
 app.use(express.json());

src/utils/envConfig.ts

@@ -1,3 +1,7 @@
+import { config } from "dotenv";
+
+config();
+
 export const ENV_CONFIG = {
   PORT: process.env.PORT || 4000,
   SERVER_URL: process.env.SERVER_URL || "http://localhost:4000",