fix(deps): bump @tanstack/dom-vite to 0.1.0-alpha.5 for RSC hydration fix

Pulls in the shim's deferred-hydration fix for function-component suspension
(shipped in @tanstack/react-dom@0.1.0-alpha.4). Resolves the duplicate-markup
regression on docs pages where RSC content was rendered twice inside the
prose container after hydration, causing the TOC scrollspy to toggle
highlights sporadically because each heading ID appeared 2× in the DOM.

Author: tannerlinsley

package.json

@@ -122,7 +122,7 @@
     "@playwright/test": "^1.59.0",
     "@shikijs/transformers": "^4.0.2",
     "@tanstack/devtools-vite": "^0.6.0",
-    "@tanstack/dom-vite": "0.1.0-alpha.4",
+    "@tanstack/dom-vite": "0.1.0-alpha.5",
     "@tanstack/react-devtools": "^0.10.2",
     "@tanstack/react-query-devtools": "^5.99.0",
     "@types/hast": "^3.0.4",