fix: export AxelarQueryClient class (#343)

Co-authored-by: João Sousa <[email protected]>

src/libs/index.ts

@@ -2,6 +2,7 @@ export * from "./AxelarAssetTransfer";
 export * from "./AxelarGateway";
 export * from "./AxelarQueryAPI";
 export * from "./AxelarSigningClient";
+export * from "./AxelarQueryClient";
 export * from "./TransactionRecoveryApi";
 export * from "./GatewayTx";
 export * from "./types";