Update homepage description to focus on AI for Science

- Changed 'influential labs' to 'organizations working in AI for Science'
- Better reflects the site's focus on AI applications in scientific research
- Clarifies the purpose for visitors

src/pages/index.tsx

@@ -64,7 +64,7 @@ function Page({
             </span>
           </h1>
           <p className="text-base sm:text-lg lg:text-xl text-muted-foreground max-w-2xl mx-auto leading-relaxed px-4">
-            Open models, datasets, and apps from influential labs in the last year.
+            Open models, datasets, and apps from orgs contributing to AI4Science in the last year.
           </p>
         </div>