Version 1.13.4

• upload: when the dragged or pasted files contain directories, the "Dir" mode is always used, while in the previous version, if current mode is "Dir content", this mode was remain unchanged
• upload: when uploading a subdirectory and mkdir is not enabled, pop up a prompt
• other minor fixes and improvements

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• 上传：当拖放或粘贴的文件中含有目录时，总是使用“目录”上传模式，而之前的版本中如当前为“目录内容”上传模式，则会保持该模式
• 上传：当上传子目录而mkdir未启用时，弹出提示
• 其他次要修复和改进