build: Use 'node' module resolution for TS compile

Module resolution wasn't working correctly when merging the changes for the sample app. See: https://www.typescriptlang.org/docs/handbook/module-resolution.html\#module-resolution-strategies

tsconfig.json

@@ -4,6 +4,7 @@
     "strict": false,
     "target": "ES5",
     "lib": ["dom"],
-    "esModuleInterop": true
+    "esModuleInterop": true,
+    "moduleResolution": "node"
   }
 }