feat(theme): Add tomorrow-night

[cashpw]

What?

1. Add tomorrow night github.com/chriskempson/tomorrow-theme theme and screenshot.

Why?

It's a nice theme!

[cashpw]

My screenshot looks a bit large compared to the others. I'm not sure which bit is different on my machine. I have the fonts, etc. Maybe some part of my config is taking priority?

[ammgws]

Maybe your screen resolution

[bim9262]

I'd suggest separator = "\ue0b2" since that's what all of our multi-colored themes have.
Also doc/themes.md should be updated so that people can see what the theme looks more easily.

Let me know if you have problems with the resolution and I can generate the image for you

[cashpw]

I'd suggest separator = "\ue0b2" since that's what all of our multi-colored themes have. Also doc/themes.md should be updated so that people can see what the theme looks more easily.

Done!

Let me know if you have problems with the resolution and I can generate the image for you

That'd be great. I tried it for a half hour or so but oddly enough couldn't get the new separator to show up or the correct resolution.

[bim9262]