fix: 修复下载无法输入文件名问题

[long-woo]

PR Type

What kind of change does this PR introduce?

• [x] Bugfix
• [ ] Feature
• [ ] Code style update (formatting, local variables)
• [ ] Refactoring (no functional changes, no api changes)
• [ ] Documentation
• [ ] Other...

PR description

修复下载无法输入文件名问题。

Issue Number: #17