Don't beautify mj-style

[nealoke]

Hi, first of all, great plugin! 👍 The only thing I think were this could improve is when allowing the beautifying is when the mj-style is used.

Currently it formats every class and styling on one line which is not handy to work with. The wanted behavior should be like how it beautifies CSS.

What do you think?

[KayLeung]

It used js-beautify internal. I added mj-style to html.unformatted option as a temporary solution

[attilabuti]

@nealoke I will fix it in the next update.

[attilabuti]

The issue is fixed on 1.5.0.