Missing required config options for Synapse

Hi,

Looks like we're missing an option to set a few things for synapse.

I am unable to create admin users from the shell and I'm seeing this error when trying do so:

No 'registration_shared_secret' defined in config.

Looks like this is commented out and unused in the config currently. https://github.com/dacruz21/matrix-chart/blob/master/templates/synapse/_homeserver.yaml#L871

In the startup logs I'm also seeing:

Synapse requires that a list of trusted key servers are specified in order to
provide signing keys for other servers in the federation.
This homeserver does not have a trusted key server configured in
homeserver.yaml and will fall back to the default of 'matrix.org'.
Trusted key servers should be long-lived and stable which makes matrix.org a
good choice for many admins, but some admins may wish to choose another. To
suppress this warning, the admin should set 'trusted_key_servers' in
homeserver.yaml to their desired key server and 'suppress_key_server_warning'
to 'true'.
In a future release the software-defined default will be removed entirely and
the trusted key server will be defined exclusively by the value of
'trusted_key_servers'.

The last bit is the important part.

This ones at https://github.com/dacruz21/matrix-chart/blob/master/templates/synapse/_homeserver.yaml#L1094

And last but not least from startup logs:

Config is missing macaroon_secret_key

https://github.com/dacruz21/matrix-chart/blob/master/templates/synapse/_homeserver.yaml#L1030

typokign / matrix-chart

Missing required config options for Synapse #21