fix(components): 修复“协议内容”组件可能无法打开参数相关对话框的问题

1. 在识别结果为“多个结果”时，点击下拉展示框的“从库中选”和“自定义”按钮，按下时间过长时无法打开对话框

src/views/setup-protocol/ProtocolContent.vue

@@ -757,10 +757,10 @@ defineExpose({
           >
             <template #dropdownRender="{ menuNode: menu }">
               <div class="multiple-results-select-header">
-                <div class="multiple-results-select-button" @click="changeToStandardParams(record)">
+                <div class="multiple-results-select-button" @mousedown="changeToStandardParams(record)">
                   {{ $t('setupProtocol.selectFromProtocolLibrary') }}
                 </div>
-                <div class="multiple-results-select-button" @click="changeToCustomParams(record)">
+                <div class="multiple-results-select-button" @mousedown="changeToCustomParams(record)">
                   {{ $t('common.custom') }}
                 </div>
               </div>