add italic variants (attribute and function names)

[rcrooks]

Hi @mvllow Love this theme and thought I'd offer these variants I made for my local copy - it's very modest: I just added italics to attribute and function names, as I find this makes code more readable for me. I initially just did it for the main theme, but thought I might as well do it for the dawn and moon variants also.

I also modified the package.json to include these italic variants.

Best, Robert

[mvllow]

Thanks for adding these!

We are currently using pinecone to generate the different variants but the italics shouldn't conflict. It may be smart to remove all italics from the non-italic variants but that's another issue I will look at 🥰

I want to test locally and then will merge asap!

[rcrooks]

Thanks. Whatever you decide to do is ok with me. Love your theme anyway.

[mvllow]

I think this change is subtle (and welcome) enough to be added into the main variants, rather than italic variants. Merged in #18, thanks again!

[rcrooks]

Even better -- thanks!