refactor(exampaper): 统一分页参数命名以匹配后端接口

将分页参数从pageIndex/pageSize改为current/size以保持与后端接口一致

src/views/exm/exampaper/index.vue

@@ -234,14 +234,14 @@
 	}
 
 	const handlePageChange = (page, pageSize) => {
-		queryParam.pageIndex = page
-		queryParam.pageSize = pageSize
+		queryParam.current = page
+		queryParam.size = pageSize
 		search()
 	}
 
 	const handlePageSizeChange = (current, size) => {
-		queryParam.pageIndex = 1
-		queryParam.pageSize = size
+		queryParam.current = 1
+		queryParam.size = size
 		search()
 	}