Adding two new variables to compose.yml to disable registration and login

.env.sample

@@ -10,3 +10,5 @@ ADMIN_USER_EMAIL=replace-me
 ADMIN_USER_NAME=replace-me
 ADMIN_USER_PWD=replace-me
 SECRET_KEY_BASE=replace-me
+DISABLE_AUTH=replace-me # true or false
+DISABLE_REGISTRATION=replace-me # true or false

compose.yml

@@ -17,6 +17,8 @@ services:
       - DATABASE_URL=postgres://plausible:plausible@${STACK_NAME}_db:5432/plausible
       - SMTP_HOST_ADDR
       - MAILER_EMAIL
+      - DISABLE_REGISTRATION
+      - DISABLE_AUTH
     networks:
       - proxy
       - internal