chore: update .gitignore to include data directory and modify docker-compose.yml for external volume mapping

.gitignore

@@ -41,3 +41,6 @@ yarn-error.log*
 next-env.d.ts
 
 /src/generated/prisma
+
+# data
+data/

docker-compose.yml

@@ -4,7 +4,7 @@ services:
       context: .
       dockerfile: Dockerfile
     ports:
-      - "3009:3000"
+      - '3009:3000'
     environment:
       - NODE_ENV=production
       - DATABASE_URL=file:/app/data/dev.db
@@ -12,8 +12,7 @@ services:
       - AUTH_TRUST_HOST=true
       - AUTH_URL=${AUTH_URL:-https://workshop-manager.julienfroidefond.com}
     volumes:
-      - ./data:/app/data
+      - /Volumes/EXTERNAL_USB/sites/workshop-manager/data:/app/data
     restart: unless-stopped
     labels:
-      - "com.centurylinklabs.watchtower.enable=false"
-
+      - 'com.centurylinklabs.watchtower.enable=false'