Add environment variable to disable email confirmation banner (#676)

docker-compose.yml

@@ -35,6 +35,9 @@ services:
 
             # Enables Thumbnail generation using ImageMagick
             ENABLE_CONVERSIONS: 'true'
+            
+            # Disables email confirmation requirement
+            EMAIL_CONFIRMATION_DISABLED: 'true'
 
             ## Set for SSL via nginx-proxy
             #VIRTUAL_HOST: 103.112.212.22