chore: optional chaining to avoid throwing errors

Author: Miodec

frontend/src/ts/modals/google-sign-up.ts

@@ -59,7 +59,7 @@ async function hide(): Promise<void> {
         LoginPage.enableInputs();
         if (getAdditionalUserInfo(signedInUser)?.isNewUser) {
           await Ape.users.delete();
-          await signedInUser.user.delete().catch(() => {
+          await signedInUser?.user.delete().catch(() => {
             //user might be deleted already by the server
           });
         }