Fix Vite playground warnings

Author: adamwathan

playgrounds/vite/tsconfig.json

@@ -5,6 +5,7 @@
     "module": "ESNext",
     "moduleDetection": "force",
     "allowJs": true,
+    "jsx": "react-jsx",
 
     /* Bundler mode */
     "moduleResolution": "Bundler",
@@ -20,6 +21,6 @@
     "noFallthroughCasesInSwitch": true,
     "forceConsistentCasingInFileNames": true,
   },
-  "include": ["**/*.ts"],
+  "include": ["**/*.ts", "**/*.tsx"],
   "exclude": ["node_modules"],
 }