Use Gander capabilities figure and remove GitHub navigation border

Author: Kaiming-Y

website/assets/overviews/README.md

@@ -9,7 +9,7 @@ These are original figures or resized previews of original figures from the name
 | `onestreamer-streaming-video.png` | [OneStreamer authors](https://github.com/MCG-NJU/OneStreamer/blob/main/assets/architecture.png) |
 | `moss-vl-realtime-proactive-video.png` | [OpenMOSS / MOSS-VL](https://github.com/OpenMOSS/MOSS-VL/blob/main/assets/architecture.png) |
 | `joyai-vl-interaction.png` | [JD / JoyAI-VL-Interaction](https://github.com/jd-opensource/JoyAI-VL-Interaction/blob/main/img/overview.png) |
-| `gander-omni-interaction-agent.png` | [Gander authors, system overview](https://github.com/Omni-Interaction-Gander/Omni-Interaction-Agent/blob/main/docs/assets/brain-cerebellum-runtime.png) |
+| `gander-omni-interaction-agent.png` | [Gander authors, capabilities overview](https://github.com/Omni-Interaction-Gander/Omni-Interaction-Agent/blob/main/docs/assets/gander-capabilities.png) |
 | `pask.png` | [PASK authors](https://xzf-thu.github.io/Pask/assets/images/figure1.png) |
 | `pira-bench.png` | [PIRA-Bench authors, Figure 1](https://arxiv.org/html/2603.08013v1#S1.F1) |
 | `pi-bench.png` | [π-Bench authors](https://simplified-reasoning.github.io/Pi-Bench/assets/figures/overview.png) |

website/assets/overviews/gander-omni-interaction-agent.png

@@ -102,10 +102,10 @@
       "selectionGroup": "model",
       "thumbnail": {
         "src": "/awesome-proactive-agent/assets/overviews/gander-omni-interaction-agent.png",
-        "alt": "Gander system overview connecting the streaming Cerebellum, agent orchestration runtime, and asynchronous Back Brain",
-        "source": "https://github.com/Omni-Interaction-Gander/Omni-Interaction-Agent#-system-design",
-        "caption": "Official system overview · Gander authors",
-        "original": "https://raw.githubusercontent.com/Omni-Interaction-Gander/Omni-Interaction-Agent/main/docs/assets/brain-cerebellum-runtime.png"
+        "alt": "Gander capabilities overview of omni perception, real-time full-duplex interaction, and agentic execution",
+        "source": "https://github.com/Omni-Interaction-Gander/Omni-Interaction-Agent/blob/main/docs/assets/gander-capabilities.png",
+        "caption": "Official capabilities overview · Gander authors",
+        "original": "https://raw.githubusercontent.com/Omni-Interaction-Gander/Omni-Interaction-Agent/main/docs/assets/gander-capabilities.png"
       }
     }
   }