Add Cohere For AI to Model Release Heatmap

### What
Add Cohere For AI to the Heatmap

src/pages/index.tsx

@@ -14,6 +14,7 @@ const PROVIDERS_MAP = {
   "NVIDIA": { color: "#76B900", authors: ["nvidia"] },
   "DeepSeek": { color: "#0088cc", authors: ["deepseek-ai"] },
   "Qwen": { color: "#0088cc", authors: ["Qwen"] },
+  "Cohere For AI": { color: "#4C6EE6", authors: ["CohereForAI"] },
 };
 
 interface ModelData {