🚨(react) fix stories file warnings

Revert the changes made in the d05e385 commit, it was causing IDE
warnings in stories files about source files that cannot be resolved,
but in reality Storybook really base its config on the local tsconfig.json,
so excluding stories.tsx files was just a ugly temporary fix.

packages/react/tsconfig.json

@@ -8,6 +8,6 @@
     "types": ["vitest/globals", "vite/client"]
   },
   "include": ["src", "cunningham.ts"],
-  "exclude": ["node_modules", "dist", "**/tokens.ts", "**/*.stories.tsx"],
+  "exclude": ["node_modules", "dist", "**/tokens.ts"],
   "references": [{ "path": "./tsconfig.node.json" }]
 }