style: Add elNamespace

feat(component): Add namespace of class

src/components/LocaleDropdown/src/LocaleDropdown.vue

@@ -4,6 +4,11 @@ import { ElDropdown, ElDropdownMenu, ElDropdownItem } from 'element-plus'
 import { useLocaleStore } from '@/store/modules/locale'
 import { useLocale } from '@/hooks/web/useLocale'
 import { propTypes } from '@/utils/propTypes'
+import { useDesign } from '@/hooks/web/useDesign'
+
+const { getPrefixCls } = useDesign()
+
+const prefixCls = getPrefixCls('locale-dropdown')
 
 defineProps({
   color: propTypes.string.def('')
@@ -28,7 +33,7 @@ const setLang = (lang: LocaleType) => {
 </script>
 
 <template>
-  <ElDropdown trigger="click" @command="setLang">
+  <ElDropdown :class="prefixCls" trigger="click" @command="setLang">
     <Icon
       :size="18"
       icon="ion:language-sharp"