Refactor pgAdmin Docker configuration

Updated pgAdmin configuration with new environment variables and added volume for persistent data.

pgadmin/docker-compose.yml

@@ -5,10 +5,10 @@ services:
       - 5050:80
     environment:
       - PGADMIN_DEFAULT_EMAIL=roland@frannetwerk.com
-            - PGADMIN_DEFAULT_PASSWORD=UgFPx2^!m&ttAX
+      - PGADMIN_DEFAULT_PASSWORD=ugfP2z*1mst+AX
       - PGADMIN_SERVER_NAME=pgadmin.frannetwerk.nl
-            - PGADMIN_CONFIG_ENHANCED_COOKIE_PROTECTION=False
+      - PGADMIN_CONFIG_ENHANCED_COOKIE_PROTECTION=false
-            - PGADMIN_CONFIG_ALLOW_HOSTS=['*']
+      - PGADMIN_CONFIG_ALLOW_HOSTS=['**']
       - PGADMIN_CONFIG_SERVER_MODE=True
       - MAIL_SERVER=mail.frannetwerk.com
       - MAIL_PORT=465
@@ -16,8 +16,15 @@ services:
       - MAIL_USE_TLS="False"
       - MAIL_DEFAULT_SENDER=admin@frannetwerk.com
       - MAIL_USERNAME=admin@frannetwerk.com
-            - MAIL_PASSWORD='PV3Edsd2Chn1Gj'
+      - MAIL_PASSWORD='PV36dcPCns1G}'
       - MAIL_DEBUG="True"
       - SECURITY_EMAIL_SENDER=admin@frannetwerk.com
-             mem_limit="512MB"
+      - mem_limit="512m"
     image: dpage/pgadmin4:latest
+    volumes:
+      - pgadmin_data:/var/lib/pgadmin
+    restart: always
+
+volumes:
+  pgadmin_data:
+    driver: local