Update pgAdmin image and add VS Code settings file

Switched the pgAdmin image in the docker-compose file to use the elestio/pgadmin:latest version for better maintenance and updates. Added an empty `.vscode/settings.json` file to support future editor configuration.

.gitignore

@@ -0,0 +1,2 @@
+/data
+.env

.vscode/settings.json

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+{}

docker-compose.yaml

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+services:
+    pgadmin:
+        container_name: pgadmin
+        image: elestio/pgadmin:latest
+        restart: unless-stopped
+        environment:
+            PGADMIN_DEFAULT_EMAIL: ${PGADMIN_DEFAULT_EMAIL:-admin@example.com}
+            PGADMIN_DEFAULT_PASSWORD: ${PGADMIN_DEFAULT_PASSWORD:-changeme}
+            SCRIPT_NAME: ${SCRIPT_NAME:-}
+        volumes:
+            - pgadmin_data:/var/lib/pgadmin:delegated
+        ports:
+            - 9440:80
+
+volumes:
+    pgadmin_data: