docs: update local search i18n

Author: brc-dd

docs/reference/default-theme-search.md

@@ -39,18 +39,25 @@ export default defineConfig({
       provider: 'local',
       options: {
         locales: {
-          zh: {
+          zh: { // make this `root` if you want to translate the default locale
             translations: {
               button: {
-                buttonText: '搜索文档',
-                buttonAriaLabel: '搜索文档'
+                buttonText: '搜索',
+                buttonAriaLabel: '搜索'
               },
               modal: {
-                noResultsText: '无法找到相关结果',
-                resetButtonTitle: '清除查询条件',
+                displayDetails: '显示详细列表',
+                resetButtonTitle: '重置搜索',
+                backButtonTitle: '关闭搜索',
+                noResultsText: '没有结果',
                 footer: {
                   selectText: '选择',
-                  navigateText: '切换'
+                  selectKeyAriaLabel: '输入',
+                  navigateText: '导航',
+                  navigateUpKeyAriaLabel: '上箭头',
+                  navigateDownKeyAriaLabel: '下箭头',
+                  closeText: '关闭',
+                  closeKeyAriaLabel: 'esc'
                 }
               }
             }