WhatsApp was reported to be working on a new interface for its Web client with a sidebar and a dark mode last year. Now, according to a new report, the revamped design has started to roll out to some users. The new WhatsApp Web feature is said to be available to some of the users who have signed up for the Web client’s beta programme. This also hints that a public rollout may not be too far off. Notably, last week,…