Keep brand logos white on hover in dark mode

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: jmitchel3

src/pages/index.astro

@@ -164,7 +164,7 @@ const brands = [
   }
 
   :global(.dark) .brand-logo:hover {
-    filter: grayscale(0%) invert(0);
+    filter: grayscale(100%) invert(1);
     opacity: 1;
   }