As Gina Miller sees it, the first positive sign was the election of Joe Biden as President of the United States, signalling a new dawn for international relations. Then early last week, the UK Chancellor of the Exchequer Rishi Sunak broke his silence on the future of Britain’s financial services. The City of London will remain “open and attractive”, Sunak promised MPs, as he offered full equivalence on regulatory matters for EU firms who want to work in Britain. Sunak also vowed that the next chapter in UK finance will be green. As the crunch talks on Brexit intensify, British…