Fix: include new backdrop-blur-xs option (#5030)

docs/configs/settings.md

@@ -78,7 +78,7 @@ background:
 You can apply a blur filter to the service & bookmark cards. Note this option is incompatible with the background blur, saturate and brightness filters.
 
 ```yaml
-cardBlur: sm # sm, "", md, etc... see https://tailwindcss.com/docs/backdrop-blur
+cardBlur: xs # xs, md, etc... see https://tailwindcss.com/docs/backdrop-blur
 ```
 
 ## Favicon

src/pages/_app.jsx

@@ -16,6 +16,7 @@ import nextI18nextConfig from "../../next-i18next.config";
 const tailwindSafelist = [
   // TODO: remove pending https://github.com/tailwindlabs/tailwindcss/pull/17147
   "backdrop-blur",
+  "backdrop-blur-xs",
   "backdrop-blur-sm",
   "backdrop-blur-md",
   "backdrop-blur-xl",