Update tsconfig.json to include source files from 'src' directory and exclude 'dist' and 'node_modules' directories.

tsconfig.json

@@ -21,5 +21,6 @@
     "noUnusedParameters": false,
     "noPropertyAccessFromIndexSignature": false
   },
-  "include": ["src/**/*.ts"]
+  "include": ["src"],
+  "exclude": ["dist", "node_modules"]
 }