Clean up the previews frontend build before create a new one (#275)

Author: Igor Komlew

.github/workflows/nodejs.yml

@@ -17,6 +17,8 @@ jobs:
         cd webapp-admin
         npm install
         npm run build
+        rm ../static/js/*
+        rm ../static/css/*
         cp -R build/static/js ../static
         cp -R build/static/css ../static
         cp -R build/index.html ../static/app.html

webapp-admin/package.json

@@ -1,6 +1,6 @@
 {
   "name": "webapp-admin",
-  "version": "0.4.0",
+  "version": "0.4.1",
   "private": true,
   "dependencies": {
     "history": "^4.10.1",