Shift visualisation app to Terraform IaC deployment

[alexgleith]

Shift this stuff: https://github.com/auspatious/ldn-lulc/tree/main/visualisation

OVer to this repo: https://github.com/auspatious/terraform

Put it on a subdomain (like maps.ldn.auspatious.com I think)

[willjnz]

Actually do this instead #103