fix(web): datetime display and add TZ into environment (#618)

* fix(web): timezone

* doc(): update readme.md

* feat(web): keep using UTC timezone in default

* chore(): update doc and remove debug code

* chore(): update readme.md

* Move timezone into to .env.example

* Run prettier check

Co-authored-by: Alex Tran <alex.tran1502@gmail.com>

docker/docker-compose.yml

@@ -47,6 +47,8 @@ services:
     entrypoint: ["/bin/sh", "./entrypoint.sh"]
     env_file:
       - .env
+    environment:
+      - PUBLIC_TZ=${TZ}
     restart: always
 
   redis: