feat: Add file preview functionality and interface #11200
Merged
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What this PR does / why we need it?
文件管理现在可以支持打开大于10M的文件,后端不再报文件太大无法打开,以只读预览方式调用tailfromend,展示文件最后300行,有助于查看一些程序的日志文件内容
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