Updated google button

src/lib/components/GoogleAuthButton.svelte

@@ -6,12 +6,14 @@
 	let { 
 		onSuccess, 
 		onError, 
+		onDisconnect,
 		disabled = false,
 		size = 'default',
 		variant = 'primary'
 	} = $props<{
 		onSuccess?: (token: string) => void;
 		onError?: (error: string) => void;
+		onDisconnect?: () => void;
 		disabled?: boolean;
 		size?: 'small' | 'default' | 'large';
 		variant?: 'primary' | 'secondary';
@@ -41,6 +43,7 @@
 
 	async function handleDisconnect() {
 		await authManager.disconnectGoogle();
+		onDisconnect?.();
 	}
 
 	// Size classes