Add Resize Detail View slider to Work mode

On Agile boards in Plan mode, there is a slider to resize the detail view. This is not available in Work mode, in either Agile or Kanban view. I understand that in most cases, having a lot of columns in Work mode means this wouldn't be helpful, but we have several use cases, including kanban boards with only one or two columns, where this would be very helpful. Please add this ability, even if there is some limitation based on number of columns to what the maximum size might be.