Modify : icons in chrome app and Client

@@ -6,9 +6,14 @@
     "version": "1.0",
 
     "browser_action": {
-        "default_icon": "favicon.ico",
+        "default_icon": "icon.png",
         "default_popup": "index.html"
     },
+    "icons": {
+      "16": "./icons/icon16.png",
+      "48": "./icons/icon48.png",
+      "128": "./icons/icon128.png"
+    },
     "permissions": [
         "tabs",
         "<all_urls>"

 import React, { Component } from 'react';
-import logo from './logo.svg';
+import logo from './logo.png';
 import './App.css';
 
 class App extends Component {
@@ -7,7 +7,7 @@ class App extends Component {
     return (
       <div className="App">
         <div className="App-header">
-          <img src={logo} className="App-logo" alt="logo" />
+          <img src={logo} className="App-logo" alt="logo"/>
           <h2>Welcome to 3Line</h2>
         </div>
         <p className="App-intro">