By Lars Mucklejohn The UK’s biggest banks are set to report lower profits and narrower margins in the coming weeks, but uncertainty over the Bank of England cutting interest rates could revive the tailwind from higher borrowing costs. Reporting for the first three months of 2024 will kick off with Lloyds Banking Group next Wednesday, followed by Barclays on Thursday and Natwest on Friday. The following week will see HSBC and Santander’s results on the Tuesday and Standard Chartered’s earnings on the Thursday. Higher borrowing costs from the Bank of England pushed lenders’ net interest income t…