Update index.tsx

Author: Nick-1979

packages/extension-polkagate/src/fullscreen/accountDetails/index.tsx

@@ -141,7 +141,7 @@ export default function AccountDetails(): React.ReactElement {
   }, [genesisHash, accountAssets, assetId, paramAssetId, selectedAsset]);
 
   const onChangeAsset = useCallback((id: number) => {
-    if (id === -1) { // this is the id of native token
+    if (id === -1) { // this is the id of native token on drop down list
       setAssetIdOnAssetHub(0);
 
       return;