sign in with passkeys coming soon (#11)

### TL;DR

Added a toast notification for 'Sign-in with Passkeys' feature which is still under development.

### What changed?

'The Sign-in with Passkey' button now triggers a toast notification informing the user that this feature is coming soon.

### How to test?

Click on the 'Sign-in with Passkey' button on the login page. You should see a notification with the message 'Sign-in with Passkeys is coming soon!'.

### Why make this change?

This change has been made to inform users about upcoming features in an interactive manner and ensure a smooth user experience by preventing confusion about non-functional buttons.

packages/frontend/src/pages/auth/Login.tsx

@@ -137,6 +137,14 @@ export const Login = ({ onDone }: Props) => {
               disabled={!!loading}
               onClick={async () => {
                 setProvider('passkey');
+                await new Promise((resolve) => setTimeout(resolve, 800));
+                setProvider(false);
+                toast({
+                  id: 'coming-soon',
+                  title: 'Sign-in with Passkeys is coming soon!',
+                  variant: 'info',
+                  onDismiss() {},
+                });
               }}
             >
               Sign In with Passkey