【修改】修改参数类型，支持级别全部筛选

src/main/java/io/office/modules/manage/entity/dto/NewsParams.java

@@ -14,7 +14,7 @@ import java.util.*;
 @Data
 public class NewsParams extends PageParams {
     private String title;
-    private int levels;
+    private String levels;
     private String author;
     private String editor;
     private String keyword;