feat(app): explicitly add pretty-error dep #8459

Author: rstoenescu

app/package.json

@@ -93,6 +93,7 @@
     "postcss-loader": "3.0.0",
     "postcss-rtl": "1.7.3",
     "postcss-safe-parser": "4.0.2",
+    "pretty-error": "^2.1.1",
     "register-service-worker": "1.7.1",
     "sass": "1.29.0",
     "sass-loader": "10.1.0",