refactor: simplify access token toast and remove unnecessary fragment wrapper

- Removed redundant React fragment in Attachments.tsx for cleaner structure
- Removed fallback logic for access token description in toast; use created.description directly since description is always required by client-side validation.
- Removed unused i18n key access-token-created-default since description is always present

web/src/components/Settings/AccessTokenSection.tsx

@@ -29,15 +29,10 @@ const AccessTokenSection = () => {
     });
   }, []);
 
-  const handleCreateAccessTokenDialogConfirm = async (created?: UserAccessToken) => {
-    // Refresh list to reflect server state and include stable fields like issuedAt/expiresAt
+  const handleCreateAccessTokenDialogConfirm = async (created: UserAccessToken) => {
     const accessTokens = await listAccessTokens(currentUser.name);
     setUserAccessTokens(accessTokens);
-    toast.success(
-      t("setting.access-token-section.create-dialog.access-token-created", {
-        description: created?.description ?? t("setting.access-token-section.create-dialog.access-token-created-default"),
-      }),
-    );
+    toast.success(t("setting.access-token-section.create-dialog.access-token-created", { description: created.description }));
   };
 
   const handleCreateToken = () => {

web/src/locales/en.json

@@ -245,7 +245,6 @@
       "access-token-deleted": "Access token `{{description}}` deleted",
       "create-dialog": {
         "access-token-created": "Access token `{{description}}` created",
-        "access-token-created-default": "Access token created",
         "create-access-token": "Create Access Token",
         "created-at": "Created At",
         "description": "Description",

web/src/pages/Attachments.tsx

@@ -55,7 +55,6 @@ const Attachments = observer(() => {
   }, []);
 
   return (
-    <>
     <section className="@container w-full max-w-5xl min-h-full flex flex-col justify-start items-center sm:pt-3 md:pt-6 pb-8">
       {!md && <MobileHeader />}
       <div className="w-full px-4 sm:px-6">
@@ -152,7 +151,6 @@ const Attachments = observer(() => {
         </div>
       </div>
     </section>
-    </>
   );
 });