docs: Theme Chooser has two times Dracula but actually it is one

[Anselmoo]

The theme chooser offers two options for Dracula, but the second looks more like Sublime. This is a little bit confusing ...

https://monaspace.githubnext.com/#learn-more

Dracula 1

Dracula 2, respectively, darcula

[Dominik8893]

The second one says darcula too

[biggianteye]

It's Dracula and Darcula. They look the same at first glance. Note the "a" and "r".

[egmontkob]

Pretty hard to spot that difference, especially if one hasn't heard of "darcula". :)

Also note that these two aren't in alphabetical order, although the rest of the list is.