Custom `loadingIcon` inherits `toast` classes even though it is rendered inside one

[Sam Laycock]

Looking at the code, I'm not sure if this is intentional or not..?:

sonner/src/index.tsx

Line 200 in 9b0dcae

 className={cn('loader', classNames?.toast, toast?.classNames?.toast)} 

It means that the custom loadingIcon is rendered with the toast's classes, which causes a double rendering of styles (background, shadows etc.). I think it would be better if the loadingIcon prop was completely agnostic to any other external styles, as you've already opted into rendering the loading component yourself entirely anyway?

Example:

[Emil Kowalski]

Good catch, fixed in #268