Clears any validation error message before re-displaying confirmation (#487)

It's a small change, but it should be OK.  🤓 

Previously, there was a **very minor** issue if the following steps were followed:
- log in
- navigate to profile
- delete account
- enter incorrect password
- note the validation error message
- close confirmation window via ESC or Nevermind
- delete account...again

The issue: the validation error message is still displayed.

I've simply added `$this->resetErrorBag();` to make sure that validation errors are cleared each time the user attempts to delete their account.

Please let me know if there are any problems/questions.  Thx...!  🤓

Author: telkins

src/Http/Livewire/DeleteUserForm.php

@@ -32,6 +32,8 @@ class DeleteUserForm extends Component
      */
     public function confirmUserDeletion()
     {
+        $this->resetErrorBag();
+
         $this->password = '';
 
         $this->dispatchBrowserEvent('confirming-delete-user');