fix: Logo background blur

Author: mvsde

docs/.vitepress/theme/custom.css

@@ -5,8 +5,8 @@
 
   --vp-home-hero-image-background-image: linear-gradient(
     0deg,
-    var(--vp-c-brand) 30%,
-    var(--vp-c-brand-light)
+    var(--vp-c-brand-3) 30%,
+    var(--vp-c-brand-1)
   );
   --vp-home-hero-image-filter: blur(50px) opacity(0.5);
 }