build: fix root dir in tsconfig

Author: RyanClementsHax

e2e/test_repos/templates/create-react-app/package-lock.json

@@ -1,4 +1,8 @@
 {
   "extends": "./tsconfig.json",
-  "exclude": ["src/**/*.spec.ts", "src/testSetup.ts"]
+  "compilerOptions": {
+    "rootDir": "./src"
+  },
+  "include": ["src"],
+  "exclude": ["src/**/*.test.ts", "src/testSetup.ts"]
 }