adding build step for serving

app.json

-{
-    "scripts": {
-        "dokku": {
-            "predeploy": "npm install -g @quasar/cli && quasar build"
-        }
-    }
-}
\ No newline at end of file

package.json

@@ -8,6 +8,8 @@
     "private": true,
     "scripts": {
         "start": "quasar serve dist",
+        "build": "quasar build",
+        "postinstall": "yarn run build",
         "test": "quasar test --unit jest",
         "test:unit": "jest --updateSnapshot",
         "test:unit:coverage": "jest --coverage",
@@ -35,4 +37,4 @@
     "browserslist": [
         "last 1 version, not dead, ie >= 11"
     ]
-}
\ No newline at end of file
+}