Add skipLibCheck to tsconfig

Default template can't build due to this error:

"Cannot access ambient const enums when the '--isolatedModules' flag is
provided."

The errors are in node_modules/@vue/runtime-core so we can actually just
have ts skip checking files in node_modules.

See vitejs/vite#5814

tsconfig.json

@@ -9,6 +9,7 @@
     "sourceMap": true,
     "resolveJsonModule": true,
     "isolatedModules": true,
+    "skipLibCheck": true,
     "esModuleInterop": true,
     "lib": ["esnext", "dom"]
   },