This will allow you to access only from the device where the node is running. You need to use either How to remote access the web dashboard - Storj Docs or [Tech Preview] Multinode Dashboard Binaries
Removing 127.0.0.1: from the port mapping will work too, but your dashboard will be opened to your LAN without any protection. In this case at least do not publish this port to the internet - all your private information will be available to anyone.
Since you removed
you will have Warning and error logs since updating to latest releasse