优化合格证列表查询条件，移除注释并启用isMerged参数

src/views/certificateManagement/components/listCoomModal.vue

@@ -347,7 +347,7 @@
         return getList({
           ...where,
           generateType: 1,
-          // isMerged: 0,
+          isMerged: 0,
           pageNum: 1,
           size: 999
         });