Improve service worker (#1353)

* Improve service worker

 - Add new env variable in WebPack "NODE_ENV"
 - Add new service worker for mode dev that permit to by pass response in cache storage
 - Add new WorkAdventure icon

* Remove console.log

* Add service worker file prod and dev

front/webpack.config.ts

@@ -201,6 +201,7 @@ module.exports = {
             MAX_USERNAME_LENGTH: 8,
             MAX_PER_GROUP: 4,
             DISPLAY_TERMS_OF_USE: false,
+            NODE_ENV: "development",
         }),
     ],
 } as Configuration & WebpackDevServer.Configuration;