Slightly modify tsconfig.typetests.json to include all source files

Author: aryaemami59

packages/toolkit/src/tests/tsconfig.typetests.json

@@ -1,6 +1,8 @@
 {
   "extends": "../../tsconfig.test.json",
   "compilerOptions": {
-    "skipLibCheck": true
-  }
+    "skipLibCheck": true,
+    "rootDir": "../../src"
+  },
+  "include": ["../../src/**/*.ts*"]
 }