Update stratagem popup layout

Rearrange the stratagem popup to prioritize the Expert Analysis section, making it the first or only text displayed. This change reflects the existing information on the choice cards, which already show the Strategy Overview and Expected Impact.
[skip gpt_engineer]

src/pages/Index.tsx

@@ -422,21 +422,9 @@ const Index = () => {
                   className="mb-6"
                 />
               )}
-              <div className="space-y-4">
-                <div>
-                  <h3 className="text-yellow-500 font-semibold mb-2">Strategy Overview:</h3>
-                  <p className="text-gray-300">{selectedChoice?.description}</p>
-                </div>
-                
-                <div>
-                  <h3 className="text-yellow-500 font-semibold mb-2">Expected Impact:</h3>
-                  <p className="text-gray-300">{selectedChoice?.impact}</p>
-                </div>
-
-                <div>
-                  <h3 className="text-yellow-500 font-semibold mb-2">Expert Analysis:</h3>
-                  <p className="text-gray-300">{selectedChoice?.explainer}</p>
-                </div>
+              <div>
+                <h3 className="text-yellow-500 font-semibold mb-2">Expert Analysis:</h3>
+                <p className="text-gray-300">{selectedChoice?.explainer}</p>
               </div>
 
               <div className="flex justify-center pt-4">
@@ -457,4 +445,4 @@ const Index = () => {
   );
 };
 
-export default Index;
+export default Index;