Change 'wait_for_app' resource to provisioner

[innovate-invent]

galaxy-container/destinations/docker/app.tf

Line 74 in 0b8cba4

resource "docker_container" "wait_for_app" {

Change to remote-exec provisioner that runs same command in the app container. Locate any other 'wait' resources and change to provisioner.

Also remove

galaxy-container/destinations/docker/main.tf

Line 10 in 0b8cba4

data "null_data_source" "api_ready" {