feat: proper addon configuration using homeassistant_api and config volume

[genehand]

Gets us up and running with:

• Mounts the addon_config directory
• Use the base-nodejs addon image
• homeassistant_api for auth with http://supervisor/core

[genehand]

From https://github.com/t0bst4r/matterbridge-home-assistant-addon/pull/1#discussion_r1625635180, confirmed this works with 1.2.21 with no initial config, should be ready to go now 👍