Refine .env.example files across all stacks

- Streamline variable organization and formatting
- Reduce redundant comments and improve clarity
- Maintain all required variables for each stack

docker-compose/dockge/.env.example

@@ -1,9 +1,10 @@
 # Dockge Stack Environment Variables
-# These variables are used in docker-compose labels and configuration
 
-# Base Configuration
-DOMAIN=
+TZ=
+PUID=
+PGID=
+SERVER_IP=
 SERVER_HOSTNAME=
+DOMAIN=
 
-# Directory Configuration
 STACKS_DIR=