Remove glow effect from OpenHands logo in dark mode

The OpenHands logo is designed for dark backgrounds, so it doesn't need
the circular glow effect that other company logos require for visibility.

Co-authored-by: openhands <openhands@all-hands.dev>

content.py

@@ -1152,9 +1152,10 @@ h3 .header-link-icon {
             drop-shadow(0 0 8px rgba(160, 165, 180, 0.9));
 }
 
-/* Re-invert the OpenHands logo at bottom so it displays correctly */
+/* Re-invert the OpenHands logo at bottom - no glow needed as it's designed for dark backgrounds */
+.dark .js-plotly-plot image[xlink\\:href*="openhands"],
 .dark .js-plotly-plot image[href*="openhands"] {
-    filter: invert(1) hue-rotate(180deg);
+    filter: invert(1) hue-rotate(180deg) !important;
 }
 
 /* Modebar icons need re-inversion */