[FIX] 修正清空访问日志无效的前端错误

原来清空方法 deleteBatchVisLog 里，logDelete 接口参数的 category 判断方式为 `searchFormState.value.category ? searchFormState.category : visLogType.value`，这样取不到 `category` 值，改成 `category: searchFormState.category ? ...` 就可以了

Signed-off-by: Loocor <loocor@gmail.com>

snowy-admin-web/src/views/dev/log/vislog/index.vue

@@ -132,7 +132,7 @@
 	// 清空
 	const deleteBatchVisLog = () => {
 		const param = {
-			category: searchFormState.value.category ? searchFormState.category : visLogType.value
+			category: searchFormState.category ? searchFormState.category : visLogType.value
 		}
 		logApi.logDelete(param).then(() => {
 			tableRef.value.refresh(true)