Restore usesAnimation in styles.scss

Signed-off-by: GitHub Action <action@github.com>

assets/scss/style.scss

@@ -1,7 +1,9 @@
 @import "predefined.scss";
 @import "normalize.scss";
 @import "syntax.scss";
+{{ if ne false .Site.Params.usesAnimation }}
 @import "animate.scss";
+{{ end }}
 @import "scroll.scss";
 @import "socialshare.scss";
 {{ if (fileExists "assets/scss/userstyles.scss") }}