fix: utility accepts string instead of BN

Author: bucko13

src/utils/constants.js

@@ -1,8 +1,7 @@
-import BigNumber from "bignumber.js";
 import { satoshisToBitcoins } from "unchained-bitcoin";
 
 export const DUST_IN_SATOSHIS = 546;
-export const DUST_IN_BTC = satoshisToBitcoins(BigNumber(DUST_IN_SATOSHIS));
+export const DUST_IN_BTC = satoshisToBitcoins(DUST_IN_SATOSHIS.toString());
 export const DEFAULT_PREFIX = "m";
 export const CHANGE_INDEX = "/1";
 export const DEFAULT_CHANGE_PREFIX = DEFAULT_PREFIX + CHANGE_INDEX;