[Small Type error Fix]TrustSet LimitAmount Type changed (#1937)

* TrustSet interface amount type changed

Before this edit, if you worked with TrustSet transaction response and you wanted to get LimitAmount.currency, LimitAmount.issuer, and LimitAmount.value, you would get a type error that those properties do not exist on the type string of LimitAmount. This very little edit changes that and now it should work properly.

* Update HISTORY.md

packages/xrpl/HISTORY.md

@@ -5,6 +5,7 @@ Subscribe to [the **xrpl-announce** mailing list](https://groups.google.com/g/xr
 ## Unreleased
 
 ### Fixed
+* Type of TrustSet transaction edited, specifically LimitAmount property type (fixed typescript issue)
 * Remove unnecessary console.warn for partial payments (#1783, #1784, #1896)
 
 ## 2.1.1 (2021-12-23)

packages/xrpl/src/models/transactions/trustSet.ts

@@ -1,5 +1,5 @@
 import { ValidationError } from '../../errors'
-import { Amount } from '../common'
+import { IssuedCurrencyAmount } from '../common'
 
 import {
   BaseTransaction,
@@ -102,7 +102,7 @@ export interface TrustSet extends BaseTransaction {
    * Object defining the trust line to create or modify, in the format of a
    * Currency Amount.
    */
-  LimitAmount: Amount
+  LimitAmount: IssuedCurrencyAmount
   /**
    * Value incoming balances on this trust line at the ratio of this number per
    * 1,000,000,000 units. A value of 0 is shorthand for treating balances at