chore: Fix dev run command for publish & install workflow & docs

.github/workflows/publish_and_install.yml

@@ -76,5 +76,5 @@ jobs:
     - name: Server smoke tests
       run: |
         cd $HOME/install/test-app
-        npm run start &
+        npm run dev &
         node $GITHUB_WORKSPACE/.github/workflows/scripts/smoke-tests

docs/content/getting-started.md

@@ -53,9 +53,9 @@ Vendure Create will guide you through the setup. When done, you can run:
 ```sh
 cd my-app
 
-yarn start
+yarn dev
 # or
-npm run start
+npm run dev
 ```
 
 Assuming the default config settings, you can now access: