Implement `replace_css_class` action

[marcoroth]

Action signature:

turbo_stream.replace_css_class(targets, from, to, **attributes)

Question: or maybe old and new instead of from and to?

Example Turbo Stream Element:

<turbo-stream action="replace_css_class" targets=".items" from="background-blue" to="background-gray"></turbo-stream>

Action content:

target.classList.replace(from, to)

Reference:

• https://developer.mozilla.org/en-US/docs/Web/API/DOMTokenList/replace