### Steps to reproduce

1. Login into QA Edge
2. Go to Administration > Users
3. Select a user
4. Click on Delete button
5. Enter the user's email address in the field
6. Click Delete again
7. Enter your password
8. Press Enter on your keyboard

### What is the buggy behavior?

* The modal is closed but the action is not really taken into account so the user sees again the previous page

### What is the expected behavior?

* Begin of the insertion Pressing ENTER should confirm the action - deleting the user. 
* Pressing ESC should cancel the action and close the modal.

End of the insertion Begin of the deletion


End of the deletion ### Environment information

_Please check and fill out the following details to help us identify in what versions and distributions of OpenProject the error occurs_

**OpenProject installation type**

* [ ] Hosted cloud edition
* [ ] Packaged installation
* What distribution?
* [ ] Docker All-in-one container
* [ ] Docker-compose installation
* [x] Other (please specify): QA Edge

**OpenProject version**

_If you're not running on the cloud edition, please specify the version of OpenProject you're running. Example: v12.1.5_

**Browser**

* [x] Chrome
* [x] Firefox
* [ ] Safari
* [ ] Mobile Safari
* [ ] Other (please specify)