fix(docs): fix docs build — MDX acorn error and CSS @import ordering (#6217)

apps/docs/src/css/custom.css

@@ -1,8 +1,7 @@
+@import url("https://api.fontshare.com/v2/css?f[]=work-sans@2,1&display=swap");
 @import "tailwindcss/theme" layer(theme);
 @import "tailwindcss/utilities" layer(utilities);
 
-@import url(https://api.fontshare.com/v2/css?f[]=work-sans@2,1&display=swap);
-
 @custom-variant dark (&:where([data-theme="dark"], [data-theme="dark"] *));
 
 @theme {