Hannah Murphy, Financial Times (FT) Lidiane Jones, the 44-year-old former Slack chief executive was announced as the successor to Whitney Wolfe Herd, CEO of Bumble, marking a handover between two rare female leaders in tech. Jones has a difficult job on her hands. Shares in the female-friendly dating app have fallen around 80 per cent since its 2021 initial public offering. And in March, Blackstone — Bumble’s largest institutional shareholder — sold a 10 per cent stake in the app…