Expense list displays the expense `createdAt` date instead of `expenseDate`

[jesseahouser]

Mobile app behavior

The mobile app Expense list always displays the createdAt date. If a user has entered an expenseDate for a given expense, the expectation from the user is to see expenseDate displayed in the list rather than the createdAt date.

spliit-mobile/app/(tabs)/[groupId]/(tabs)/index.tsx

Lines 148 to 152 in bf1f087

	<Text className="text-xs text-slate-600">
	{expense.createdAt.toLocaleDateString('en-US', {
	dateStyle: 'medium',
	})}
	</Text>

Web app behavior

The web app correctly displays the expenseDate.
https://github.com/spliit-app/spliit-web/blob/5c9002e15ce0bcfb7d8efda7a4d348f89e29ff83/src/app/groups/%5BgroupId%5D/expenses/expense-list.tsx#L51-L59

function getGroupedExpensesByDate(expenses: ExpensesType) {
  const today = dayjs()
  return expenses.reduce((result: { [key: string]: ExpensesType }, expense) => {
    const expenseGroup = getExpenseGroup(dayjs(expense.expenseDate), today)
    result[expenseGroup] = result[expenseGroup] ?? []
    result[expenseGroup].push(expense)
    return result
  }, {})
}