perf: optimized keyboard support for context menus

frontend/src/components/sidebar/BrowserTree.vue

@@ -690,7 +690,6 @@ const handleOutsideContextMenu = () => {
             @update:selected-keys="onUpdateSelectedKeys"
             @update:expanded-keys="onUpdateExpanded" />
         <n-dropdown
-            :animated="false"
             :options="contextMenuParam.options"
             :render-label="renderContextLabel"
             :show="contextMenuParam.show"

frontend/src/components/sidebar/ConnectionTree.vue

@@ -530,10 +530,10 @@ const onCancelOpen = () => {
 
     <!-- context menu -->
     <n-dropdown
-        :animated="false"
         :options="contextMenuParam.options"
         :render-label="renderContextLabel"
         :show="contextMenuParam.show"
+        :keyboard="true"
         :x="contextMenuParam.x"
         :y="contextMenuParam.y"
         placement="bottom-start"

frontend/src/components/sidebar/NavMenu.vue

@@ -125,8 +125,6 @@ const openGithub = () => {
         <div class="flex-item-expand"></div>
         <div class="nav-menu-item flex-box-v">
             <n-dropdown
-                :animated="false"
-                :keyboard="false"
                 :options="preferencesOptions"
                 :render-label="renderContextLabel"
                 trigger="click"