Add option for administrator to reset user 2FA (#14243)

* Frontend

* Backend

* only show 2FA-Reset option if posible

templates/admin/user/edit.tmpl

@@ -110,6 +110,16 @@
 				</div>
 				{{end}}
 
+				{{if .TwoFactorEnabled}}
+				<div class="ui divider"></div>
+				<div class="inline field">
+					<div class="ui checkbox">
+						<label><strong>{{.i18n.Tr "admin.users.reset_2fa"}}</strong></label>
+						<input name="reset_2fa" type="checkbox">
+					</div>
+				</div>
+				{{end}}
+
 				<div class="ui divider"></div>
 
 				<div class="field">