Fix dark-mode for h1s for when I eventually look into this more

src/style/global.css

@@ -48,6 +48,7 @@ b {
 
 body.dark-mode,
 body.dark-mode button,
+body.dark-mode h1,
 body.dark-mode .go-home,
 button.dark-mode,
 button.dark-mode button {