Update changelog

resources/misc/changelogs/en/4.2.1.md

@@ -1,3 +1,6 @@
 ## Fixed
 
 - Fixed that the player may not be rendered in the proper model.
+- Fixed that "Operations Panel" in "Texture Details" page is shown even if current user is not privileged.
+- Fixed that banning the texture uploader will in fact ban the reporter.
+- Fixed that an error will occur when handling a report whose texture has been deleted.

resources/misc/changelogs/zh_CN/4.2.1.md

@@ -1,3 +1,6 @@
 ## 修复
 
 - 修复皮肤展示功能中可能的模型错误
+- 「材质详情」中「更多操作」面板不再对无权限的用户显示
+- 修复处理举报时，封禁上传者实际上会封禁举报人
+- 修复处理举报时，若材质已被删除，则会出错