Add enviroment for services

Author: Julianhm9612

src/app/services/bingo/bingo.service.ts

@@ -2,6 +2,8 @@ import { Injectable } from '@angular/core';
 import { BehaviorSubject } from 'rxjs';
 import { io } from "socket.io-client";
 
+import { environment } from '../../../environments/environment';
+
 @Injectable({
   providedIn: 'root'
 })
@@ -13,7 +15,7 @@ export class BingoService {
 
   constructor() { }
 
-  socket = io('http://localhost:3000');
+  socket = io(environment.server);
 
   public sendMessage(message: String) {
     this.socket.emit('message', message);

src/environments/environment.prod.ts

@@ -1,3 +1,4 @@
 export const environment = {
-  production: true
+  production: true,
+  server: 'https://nodejs-bingo.herokuapp.com'
 };

src/environments/environment.ts

@@ -3,7 +3,8 @@
 // The list of file replacements can be found in `angular.json`.
 
 export const environment = {
-  production: false
+  production: false,
+  server: 'http://localhost:3000'
 };
 
 /*