将标签保存至下载文件名

[cykalet]

Acknowledgements / 确认事项

• [X] I have updated to the latest version of the app / 已经更新到最新版
• [X] I have tried the FAQ / 试过FAQ了. FAQ
• [X] I have searched the existing issues and this is new ticket NOT a duplicate or related to another issue / 搜索过其他issue，确实不是重复问题
• [X] I will fill out the title and the information in this template / 填好标题和内容

What feature should be added? / 需要加上什么功能

将tag保存至下载文件名并分隔

Official support / 官方支持情况

• [ ] Is this feature supported by the official pixiv app? / 官方App是否支持

Is this feature supported by any other third-party pixiv app? / 第三方App是否支持

https://github.com/ultranity/Pix-EzViewer

Any other information can be help? / 其它信息

No response