fix: import getDefaultIntegrations from @sentry/browser

@sentry/react doesn't re-export getDefaultIntegrations or
globalHandlersIntegration, so the previous code silently called
undefined. Import directly from @sentry/browser to ensure
GlobalHandlers hooks window.onerror and onunhandledrejection.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: julianknutsen

web/src/main.tsx

@@ -1,4 +1,5 @@
 import "./api/prefetch"; // Start browse fetch immediately, before React mounts.
+import { getDefaultIntegrations, globalHandlersIntegration } from "@sentry/browser";
 import * as Sentry from "@sentry/react";
 import { StrictMode } from "react";
 import { createRoot } from "react-dom/client";
@@ -9,10 +10,12 @@ import "./styles/global.css";
 Sentry.init({
   dsn: import.meta.env.VITE_SENTRY_DSN || "",
   environment: import.meta.env.VITE_ENVIRONMENT || "development",
-  integrations: Sentry.getDefaultIntegrations({}).concat([
+  integrations: [
+    ...getDefaultIntegrations({}),
+    globalHandlersIntegration({ onerror: true, onunhandledrejection: true }),
     Sentry.browserTracingIntegration(),
     Sentry.replayIntegration(),
-  ]),
+  ],
   tracesSampleRate: 0.2,
   replaysSessionSampleRate: 0,
   replaysOnErrorSampleRate: 1.0,