[No QA]: Move split functions to a new file

src/hooks/useDeleteTransactions.ts

@@ -1,7 +1,8 @@
 import {useCallback} from 'react';
 import type {OnyxCollection} from 'react-native-onyx';
-import {deleteMoneyRequest, getIOURequestPolicyID, initSplitExpenseItemData, updateSplitTransactions} from '@libs/actions/IOU';
+import {deleteMoneyRequest, getIOURequestPolicyID, initSplitExpenseItemData} from '@libs/actions/IOU';
 import {getIOUActionForTransactions} from '@libs/actions/IOU/Duplicate';
+import {updateSplitTransactions} from '@libs/actions/IOU/Split';
 import getNonEmptyStringOnyxID from '@libs/getNonEmptyStringOnyxID';
 import {getOriginalMessage, isMoneyRequestAction} from '@libs/ReportActionsUtils';
 import {getChildTransactions, getOriginalTransactionWithSplitInfo} from '@libs/TransactionUtils';

src/libs/ReceiptUploadRetryHandler/handleFileRetry.ts

@@ -1,4 +1,5 @@
 import * as IOU from '@userActions/IOU';
+import {startSplitBill} from '@userActions/IOU/Split';
 import CONST from '@src/CONST';
 import type {ReceiptError} from '@src/types/onyx/Transaction';
 
@@ -21,7 +22,7 @@ export default function handleFileRetry(message: ReceiptError, file: File, dismi
             const startSplitBillParams = {...retryParams} as IOU.StartSplitBilActionParams;
             startSplitBillParams.receipt = file;
             startSplitBillParams.shouldPlaySound = false;
-            IOU.startSplitBill(startSplitBillParams);
+            startSplitBill(startSplitBillParams);
             break;
         }
         case CONST.IOU.ACTION_PARAMS.TRACK_EXPENSE: {

src/libs/actions/IOU/MoneyRequest.ts

@@ -33,9 +33,9 @@ import {
     setMoneyRequestParticipantsFromReport,
     setMoneyRequestPendingFields,
     setMultipleMoneyRequestParticipantsFromReport,
-    startSplitBill,
     trackExpense,
 } from './index';
+import {startSplitBill} from './Split';
 
 type CreateTransactionParams = {
     transactions: Transaction[];