refactor: streamline .drone.yml for improved readability and maintainability

.drone.yml

@@ -3,13 +3,13 @@ type: docker
 name: deploy
 
 steps:
-- name: build
+  - name: build
     image: node:18-alpine
     commands:
       - npm ci || npm install
       - npm run build || npm build
 
-- name: sync-files
+  - name: sync-files
     image: alpine:latest
     volumes:
       - name: website-data
@@ -25,6 +25,6 @@ steps:
       - chmod -R 777 /host-target
 
 volumes:
-- name: website-data
+  - name: website-data
     host:
       path: /root/kh3website/data/html