Do not transform ! to not (or add an option) - also applies to &&, || etc.

[LeoniePhiline]

As mentioned in #63, I am trying to use this prettier plugin to format askama templates, which implements Jinja syntax.

When using this plugin, ! is transformed into not - which causes askama to fail parsing.

I would love to use this plugin, but as it changes my literal code and thus breaks the application, it is unfortunately absolutely unusable, no matter how awesome it is otherwise. (And I am so glad I found it!)

It would be super great if the opinionated nature of this plugin could be somewhat reduced; i.e. content changed made opt-in.