More media types

[babababag]

I wanted to just add webp but why not others. Also changed some of them to match the official IANA doc. The new ones are from https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types.

[emhoracek]

@babababag Thanks for the PR and sorry for the delay in reviewing it!