This week I was invited to drink Tanqueray cocktails at Quaglino's new botanical bar installation that they're calling 'Giovanni's Gin Garden' (FYI it's not an actual Garden as I thought it was). I haven't been to Quaglino's since their revamp, so I trotted along to have a look, bringing a gin loving friend with me.    Quaglino's was looking very smart after its refresh and I loved the styling of the central bar in the middle; all decadence and glitz and glamour with some vegetation thrown in