Fix error permissions generate files

[Lefrant Hugo]

mfs/src/mfs.ts

Line 20 in 79b4f96

 await fs.mkdir(dirname(path), { recursive: true }) 

await fs.mkdir(dirname(htmlFilePath), { recursive: true, mode: 0o777 })
await fs.chmod(dirname(htmlFilePath), 0o777)
await fs.writeFile(htmlFilePath, htmlReplacement(renderToString(dom)))