reconfigure css to allow consumer styling

It's a little jank, but it works. The consumer absolutely MUST have a
file at `$lib/styles/tailwind.css` that contains all necessary tailwind
imports AND also imports the `src/lib/styles/base.css` file from sui.

WILL address this in another commit.

src/lib/TimeInput.svelte

@@ -363,7 +363,7 @@
 </div>
 
 <style lang="postcss">
-	@reference "./styles/theme.css";
+	@reference "$lib/styles/tailwind.css";
 
 	:global(.time-input) {
 		@apply h-16 w-24 text-center text-xl;