fix(website): allow importing ts extensions

The docs site compiles `packages/react/src` example components directly
(via the `@examples` alias). Now that source imports carry explicit
`.ts`/`.tsx` extensions, the Next.js type check needs
`allowImportingTsExtensions` enabled, mirroring `packages/tsconfig.json`.

Author: segunadebayo

website/tsconfig.json

@@ -1,5 +1,6 @@
 {
   "compilerOptions": {
+    "allowImportingTsExtensions": true,
     "allowJs": true,
     "baseUrl": ".",
     "esModuleInterop": true,