fix confirmation modal on subdomain settings (#12845)

before - 


https://github.com/user-attachments/assets/ff063912-0c1e-41e4-b01d-15081ecb04a1

after - 



https://github.com/user-attachments/assets/0ee6022d-f0a8-4243-a108-c4295d0fb560

packages/twenty-front/src/pages/settings/workspace/SettingsDomain.tsx

@@ -68,7 +68,7 @@ export const SettingsDomain = () => {
     currentWorkspaceState,
   );
 
-  const { openModal } = useModal();
+  const { openModal, closeModal } = useModal();
 
   const form = useForm<{
     subdomain: string;
@@ -141,6 +141,7 @@ export const SettingsDomain = () => {
           error instanceof ApolloError &&
           error.graphQLErrors[0]?.extensions?.code === 'CONFLICT'
         ) {
+          closeModal(SUBDOMAIN_CHANGE_CONFIRMATION_MODAL_ID);
           return form.control.setError('subdomain', {
             type: 'manual',
             message: t`Subdomain already taken`,
@@ -203,6 +204,7 @@ export const SettingsDomain = () => {
   };
 
   return (
+    <>
       <form onSubmit={form.handleSubmit(handleSave)}>
         {/* eslint-disable-next-line react/jsx-props-no-spreading */}
         <FormProvider {...form}>
@@ -231,6 +233,8 @@ export const SettingsDomain = () => {
               <SettingsCustomDomain />
             </SettingsPageContainer>
           </SubMenuTopBarContainer>
+        </FormProvider>
+      </form>
       <ConfirmationModal
         modalId={SUBDOMAIN_CHANGE_CONFIRMATION_MODAL_ID}
         title={t`Change subdomain?`}
@@ -241,7 +245,6 @@ export const SettingsDomain = () => {
             updateSubdomain(values.subdomain, currentWorkspace);
         }}
       />
-      </FormProvider>
-    </form>
+    </>
   );
 };