Refactor category button to use div for improved semantic structure; enhance accessibility and interaction

app/src/components/layout/sidebarLeft/Assets.tsx

@@ -230,7 +230,7 @@ const Assets: React.FC = () => {
                       (asset) => asset.category === category
                     );
                     return (
-                      <button
+                      <div
                         key={`${index}-${category}`}
                         className="category"
                         id={category}
@@ -243,7 +243,7 @@ const Assets: React.FC = () => {
                           draggable={false}
                         />
                         <div className="category-name">{category}</div>
-                      </button>
+                      </div>
                     );
                   })}
                 </div>