Update demo content references

[msayoung]

It would be nice to refresh the demo content.

Example:

• Remove references to coronavirus
• Update collaborator list: https://test.localgovdrupal.org/localgov-drupal-collaborators
• Update event listing: https://test.localgovdrupal.org/events
• Update dates

Probably other things too .

cc @TJHDCR

[msayoung]

Statuses have repeated content

https://demo.localgovdrupal.org/births-deaths-marriages-and-citizenship/status/registry-office-closed-until-further-notice

we should avoid the duplication