Renamed general and mode constants and implemented a check to verify that constants are just defined ones over the whole repository

roles/web-app-mobilizon/config/main.yml

@@ -1,4 +1,4 @@
-titel:              "Mobilizon on {{ primary_domain | upper }}"
+titel:              "Mobilizon on {{ PRIMARY_DOMAIN | upper }}"
 features:
   central_database: true
   oidc:             true
@@ -14,9 +14,9 @@ server:
         unsafe-eval:  true
   domains:
     canonical:
-      - "event.{{ primary_domain }}"
+      - "event.{{ PRIMARY_DOMAIN }}"
     aliases:
-      - "events.{{ primary_domain }}"
+      - "events.{{ PRIMARY_DOMAIN }}"
 docker:
   services:
     database:

roles/web-app-mobilizon/templates/env.j2

@@ -30,7 +30,7 @@ MOBILIZON_REPLY_EMAIL={{ users["administrator"].email }}
 # The loglevel setting.
 # You can find accepted values here: https://hexdocs.pm/logger/Logger.html#module-levels
 # Defaults to error
-MOBILIZON_LOGLEVEL={% if enable_debug | bool %}debug{% else %}error{% endif %}
+MOBILIZON_LOGLEVEL={% if MODE_DEBUG | bool %}debug{% else %}error{% endif %}
 
 ######################################################
 # Database settings                                  #