Apply suggestions from code review

Co-authored-by: Oleksii Matiiasevych <oleksii@chainsafe.io>

Author: viatrix

contracts/Repayer.sol

@@ -68,6 +68,10 @@ contract Repayer is IRepayer, AccessControlUpgradeable, CCTPAdapter {
         address cctpTokenMessenger,
         address cctpMessageTransmitter
     ) {
+        ERC7201Helper.validateStorageLocation(
+            STORAGE_LOCATION,
+            "sprinter.storage.Repayer"
+        );
         require(address(assets) != address(0), ZeroAddress());
         DOMAIN = localDomain;
         ASSETS = assets;

contracts/utils/CCTPAdapter.sol

@@ -6,7 +6,6 @@ import {IERC20, SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeE
 import {IRoute} from ".././interfaces/IRoute.sol";
 
 contract CCTPAdapter is IRoute {
-
     using SafeERC20 for IERC20;
 
     error ProcessFailed();