fix: ICRC-1 transaction kind is expected to be transfer not xfer

Author: yanliu38

common/src/account_transfers.rs

@@ -530,7 +530,7 @@ impl From<FundsTransfer> for Transaction {
             }
         } else {
             Transaction {
-                kind: "xfer".into(),
+                kind: "transfer".into(),
                 mint: None,
                 burn: None,
                 transfer: Some(Transfer {

ic-canister/tests/test_icrc1.rs

@@ -110,7 +110,10 @@ fn test_multiple_transfers() {
     assert_eq!(get_tx_response1.log_length, 10u8);
 
     assert_eq!(get_tx_response1.transactions.len(), 1);
-    assert_eq!(get_tx_response1.transactions[0].kind, "xfer".to_string());
+    assert_eq!(
+        get_tx_response1.transactions[0].kind,
+        "transfer".to_string()
+    );
 
     ctx.ffwd_to_next_block(ts_ns);