[bug]: unspecified text encoding on assets hosted on Blob Storage

[filiptronicek]

On files hosted on Azure Blob Storage (https://openvsxorg.blob.core.windows.net), the content encoding isn't set. The Firefox DevTools explain it pretty well:

The character encoding of the document was not declared, so the encoding was guessed from content. The character encoding needs to be declared in the Content-Type HTTP header or using a byte order mark.

The result of this is that for non-ASCII characters this produces funky results, such as in the license of one of my extensions. Having that said, I understand my name has funny weird characters, but they aren't as funny and weird as to be í�.

Firefox:

Chrome:

Safari:

They all guess, and they all guess wrong 😆.