Added package install & build step in drone config

.drone.yml

@@ -8,12 +8,22 @@ platform:
   arch: amd64
 
 steps:
-- name: frontend_install
+  - name: frontend install
-  image: node:13.6.0
+    image: node:18.2.0
     commands:
       - node -v
       - yarn --version
-- name: deploy
+      - yarn
+
+  - name: frontend build
+    image: node:18.2.0
+    commands:
+      - node -v
+      - yarn --version
+      - yarn
+      - yarn build
+
+  - name: deploy
     image: appleboy/drone-ssh
     pull: true
     secrets:
@@ -41,4 +51,3 @@ trigger:
     include:
       - pull_request
       - push
-