css: Allow pass params to css function

[dmitryuck]

Allow css to receive params:

css red(myColor string) {
	background-color: myColor;
}

templ ex() {
  <div class={red("#ff0000")}></div>
}

[a-h]

Hi @dmitryuck - that's a duplicate of #88.

It was closed (yesterday) in #484, so the next version of templ will have params - very similar to what you've asked for, except it would be:

css bgColor(color string) {
	background-color: { color };
}

You can try it out by using the main branch if you like.