New configuration for FF Expert Broker

[Steve-Mcl]

Description

A task to cover necessary helm configuration for the new EMQX broker for FlowFuse Expert.

Please break this down further or append detail as required.

Epic/Story

No response

[hardillb]

@Steve-Mcl We need the full list of all those flowfuse.yml config options we talked about yesterday adding here.

[Steve-Mcl]

@hardillb

app.config.expert.centralBroker.server e.g. ip:port
app.config.broker.teamBroker.api.url e.g. http(s)://host:port/api/v5
app.config.broker.teamBroker.api.key e.g. 1a2b33c45678d9e
app.config.broker.teamBroker.api.secret e.g. xxyzxXabcoXXXxX1XXxXxxxxxxXXXxxx8xXxXXx5XxxX