feat: add empty page color support with new CSS file and update index.html

src/style.css

@@ -1,7 +1,3 @@
 @import "tailwindcss";
 
-@media (prefers-color-scheme: dark) {
-  body { background: black; color: white; }
-}
-
 @custom-variant dark (&:where(.dark, .dark *));