feat: added missing websocket url

Author: bhavik

docker/.env.example

@@ -25,6 +25,7 @@ WIDGET_BASE_URL=http://localhost:3500
 WEB_BASE_URL=http://localhost:4200
 API_ROOT_URL=http://localhost:3000
 WIDGET_EMBED_PATH=http://localhost:4701/embed.umd.min.js
+WEBSOCKET_SERVER_URL=localhost:3000
 
 # Analytics
 SENTRY_DSN=

docker/docker-compose.yml

@@ -93,6 +93,7 @@ services:
       REACT_APP_SENTRY_DSN: ${SENTRY_DSN}
       REACT_APP_ENVIRONMENT: ${NODE_ENV}
       REACT_APP_AMPLITUDE_ID: ${AMPLITUDE_ID}
+      REACT_APP_WEBSOCKET_SERVER_URL: ${WEBSOCKET_SERVER_URL}
     ports:
       - 3500:3500
     networks: