By Emma Revell The Lib Dems could soon be the real opposition – instead of headline-grabbing stunts they should be trying to offer a real alternative to the relentless expansion of the state, says Emma Revell It says a lot about an election campaign when most of the excitement seems to be coming from Ed Davey. In just two short weeks since Sunak made his rather soggy general election announcement, the Liberal Democrat leader has ridden a rollercoaster, fallen off a paddleboard into Windermere, cycled down a remarkably steep hill in Wales, donned swimming shorts to go down a slip-n-slide in Som…