fix(tauri): enable withGlobalTauri so Tauri APIs work on live web

Without this, the redirect page loads zeavisedu.asepharyana.my.id but
__TAURI_INTERNALS__ is not injected, so isTauri() returns false,
handleGoogleLogin uses window.location.href (WebView navigation), and
Google blocks embedded WebView since 2016.

With withGlobalTauri=true, the live web page detects Tauri, uses tauri-
plugin-opener to open system browser, and Google OAuth works.

Co-Authored-By: Claude <noreply@anthropic.com>

apps/tauri/tauri.conf.json

@@ -10,7 +10,7 @@
     "beforeDevCommand": "echo 'Dev mode - connect to localhost:5173'"
   },
   "app": {
-    "withGlobalTauri": false,
+    "withGlobalTauri": true,
     "windows": [
       {
         "title": "ZeaVis Edu",