wishlist: Add support for Helium Browser #409

Overview

Add support for Helium Browser (https://helium.computer/) to the webapp-manager application.

Description

Helium Browser is a privacy-focused, lightweight browser that should be integrated as a supported browser option in webapp-manager. This will allow users to create and manage web applications using Helium Browser.

It is Chromium based, so I imagine it shouldnt be too difficylt.