Fix delete u2f keys modal (#18040)

Author: lunny

templates/user/settings/security_u2f.tmpl

@@ -7,7 +7,7 @@
 		{{range .U2FRegistrations}}
 			<div class="item">
 				<div class="right floated content">
-					<button class="ui red tiny button delete-button" id="delete-registration" data-url="{{$.Link}}/u2f/delete" data-id="{{.ID}}">
+					<button class="ui red tiny button delete-button" data-modal-id="delete-registration" data-url="{{$.Link}}/u2f/delete" data-id="{{.ID}}">
 					{{$.i18n.Tr "settings.delete_key"}}
 					</button>
 				</div>