CW-1174: Add warning for sending to contract addresses (#2463)

* feat: add warning for sending to contract addresses

* feat: Add wallet type icon to full screen qr page

lib/reactions/wallet_utils.dart

@@ -32,4 +32,17 @@ bool isElectrumWallet(WalletType walletType) {
     default:
       return false;
   }
+}
+
+bool hasTokens(WalletType walletType) {
+  switch (walletType) {
+    case WalletType.ethereum:
+    case WalletType.polygon:
+    case WalletType.solana:
+    case WalletType.tron:
+    case WalletType.zano:
+      return true;
+    default:
+      return false;
+  }
 }