Improve settings (#168)

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

frontend/sync-client/src/utils/set-up-telemetry.ts

@@ -0,0 +1,33 @@
+import * as Sentry from "@sentry/browser";
+
+export const setUpTelemetry = (): (() => void) => {
+	Sentry.init({
+		dsn: "https://56accd39d92442e788a457a04623cf57@bugs.schmelczer.dev/1",
+		skipBrowserExtensionCheck: false
+	});
+
+	const onError = (event: ErrorEvent): void => {
+		Sentry.captureException(event.error, {
+			extra: {
+				message: event.message,
+				filename: event.filename,
+				lineno: event.lineno,
+				colno: event.colno
+			}
+		});
+	};
+	window.addEventListener("error", onError);
+
+	const onUnhandledRejection = (event: PromiseRejectionEvent): void => {
+		Sentry.captureException(event.reason);
+	};
+	window.addEventListener("unhandledrejection", onUnhandledRejection);
+
+	return (): void => {
+		window.removeEventListener("error", onError);
+		window.removeEventListener("unhandledrejection", onUnhandledRejection);
+		Sentry.close(5000).catch(() => {
+			// Ignore errors during shutdown
+		});
+	};
+};