Added typescript, test and feature for comma seperated packages

tests/app/package.json

@@ -0,0 +1,13 @@
+{
+    "name": "test-app",
+    "version": "1.0.0",
+    "dependencies": {
+      "react": "^18.2.0",
+      "lodash": "^4.17.21",
+      "express": "^4.18.2"
+    },
+    "devDependencies": {
+      "typescript": "^5.0.0",
+      "jest": "^29.0.0"
+    }
+  }