refactor: reorganize all components (#8303)

src/sidebar-item/SidebarItem.tsx

@@ -1,12 +1,21 @@
+import { defineComponent } from 'vue';
+
+// Utils
 import { createNamespace } from '../utils';
+import { SIDEBAR_KEY, SidebarProvide } from '../sidebar/Sidebar';
+
+// Composables
 import { useParent } from '@vant/use';
 import { useRoute, routeProps } from '../composables/use-route';
-import { SIDEBAR_KEY, SidebarProvide } from '../sidebar';
+
+// Components
 import Badge from '../badge';
 
-const [createComponent, bem] = createNamespace('sidebar-item');
+const [name, bem] = createNamespace('sidebar-item');
+
+export default defineComponent({
+  name,
 
-export default createComponent({
   props: {
     ...routeProps,
     dot: Boolean,

src/sidebar-item/index.ts

@@ -0,0 +1,7 @@
+import { installable } from '../utils';
+import _SidebarItem from './SidebarItem';
+
+const SidebarItem = installable(_SidebarItem);
+
+export default SidebarItem;
+export { SidebarItem };