tailwind config prefix duplicates dashes in CSS class names

[alesso-x]

Using the prefix from the tailwind docs tw- produces classes with extra dashes. Instead of tw-bg-black, it becomes tw--bg-black.

I think the fix is to just check if the prefix ends with a dash and trim it here.

[rogden]

@alesso-x Thanks for reporting! Given the prefix can contain any valid CSS selector character, I ended up concatenating the prefix directly with the Tailwind class name without any additional logic to add/strip/replace characters.