Enable new push notifications functionality

[Dakael]

Problem/Motivation

Now that vaultwarden supports push notifications for syncing mobile bitwarden clients, we need to be able to pass the following environment variables to the addon container enable it.

PUSH_ENABLED=true
PUSH_INSTALLATION_ID=CHANGEME
PUSH_INSTALLATION_KEY=CHANGEME

Unfortunately this cannot be done through the admin page, as the three relevant fields are in the Read Only Config section.

Proposed changes

Ideally, add the three as options in the addon configuration screen in home assistant.

[frenck]

Ideally, add the three as options in the addon configuration screen in home assistant.

That is a hard "no" for me. I suggest opening up a feature request upstream to get it added to the admin page. As all other configuration is there, putting these there makes much more sense as well.

../Frenck