feat: update Drone CI configuration to include Tailwind CSS build step

.drone.yml

@@ -3,11 +3,16 @@ type: docker
 name: deploy
 
 steps:
-  - name: build
+  - name: install
     image: node:18-alpine
     commands:
-      - npm ci || npm install
-      - npm run build || npm build
+      - npm install -D tailwindcss@^3.4.0
+
+  - name: build-css
+    image: node:18-alpine
+    commands:
+      # Generate optimized CSS from src/input.css styles/main.css
+      - npx tailwindcss -i ./src/input.css -o ./styles/main.css --minify
 
   - name: sync-files
     image: alpine:latest
@@ -16,8 +21,7 @@ steps:
         path: /host-target
     commands:
       - cp -a . /host-target
-
-      - chmod -R 777 /host-target
+      - chmod -R 755 /host-target
 
 volumes:
   - name: website-data