feat: add start:with-theme command

Author: KristinAoki

package.json

@@ -18,6 +18,7 @@
     "postinstall": "patch-package",
     "snapshot": "fedx-scripts jest --updateSnapshot",
     "start": "fedx-scripts webpack-dev-server --progress",
+    "start:with-theme": "paragon install-theme && npm start && npm install",
     "dev": "PUBLIC_PATH=/learning/ MFE_CONFIG_API_URL='http://localhost:8000/api/mfe_config/v1' fedx-scripts webpack-dev-server --progress --host apps.local.openedx.io",
     "test": "fedx-scripts jest --coverage --passWithNoTests",
     "test:watch": "fedx-scripts jest --watch --passWithNoTests",