Added new user generation script and optimized mail config

roles/docker-discourse/templates/discourse_application.yml.j2

@@ -48,7 +48,7 @@ env:
   #DOCKER_USE_HOSTNAME: true
 
   ## on initial signup example 'user1@example.com,user2@example.com'
-  DISCOURSE_DEVELOPER_EMAILS:       {{users.administrator.email}}
+  DISCOURSE_DEVELOPER_EMAILS:       {{ users.administrator.email }}
 
   # Set Logo
   {% if service_provider.platform.logo | bool %}
@@ -135,8 +135,8 @@ run:
   - exec: rails r "SiteSetting.username_change_period = 0" # Deactivate changing of username
 
   # Activate Administrator User
-  #- exec: printf '{{users.administrator.email}}\n{{users.administrator.password}}\n{{users.administrator.password}}\nY\n' | rake admin:create
-  #- exec: rails r "User.find_by_email('{{users.administrator.email}}').update(username: '{{users.administrator.username}}')"
+  #- exec: printf '{{ users.administrator.email }}\n{{users.administrator.password}}\n{{users.administrator.password}}\nY\n' | rake admin:create
+  #- exec: rails r "User.find_by_email('{{ users.administrator.email }}').update(username: '{{users.administrator.username}}')"
 
   # The following code is just an inspiration, how to connect with the oidc account. as long as this is not set the admini account needs to be manually connected with oidc 
   # docker exec -it discourse_application rails runner "user = User.find_by_email('test@cymais.cloud'); UserAuth.create(user_id: user.id, provider: 'oidc', uid: 'eindeutige_oidc_id', info: { name: user.username, email: user.email })"