chore: prefer arrow function shorthand

src/tabs/TabsContent.tsx

@@ -29,9 +29,7 @@ export default createComponent({
   setup(props, { emit, slots }) {
     const swipeRef = ref<ComponentInstance>();
 
-    const onChange = (index: number) => {
-      emit('change', index);
-    };
+    const onChange = (index: number) => emit('change', index);
 
     const renderChildren = () => {
       const Content = slots.default?.();

src/tabs/index.tsx

@@ -438,9 +438,8 @@ export default createComponent({
       });
     };
 
-    const onRendered = (name: string | number, title?: string) => {
+    const onRendered = (name: string | number, title?: string) =>
       emit('rendered', name, title);
-    };
 
     useExpose({
       resize: setLine,