Add HTML Preview Support for dump() / dd() Output in Response Viewer #241

I noticed that when an API returns something like a Laravel dump() or dd(), Postman lets you switch to an HTML preview, which makes the output much easier to read.

In Requestly, the same response only shows up as raw HTML, so it's pretty hard to go through.

It would be really helpful if Requestly added an HTML preview option in the response viewer—basically just a way to render HTML responses instead of showing the source. This would make debugging a lot nicer, especially for frameworks like Laravel that output those styled debug screens.

Thanks!