def goto_first_item
      bc = @buttons.count
      @components[bc..-1].each { |c| 
        if c.focusable
          leave_current_component
          @current_component = c
          set_form_row
          break
        end
      }
    end
def goto_first_item
      bc = @buttons.count
      @components[bc..-1].each { |c| 
        if c.focusable
          leave_current_component
          @current_component = c
          set_form_row
          break
        end
      }
    end
takes focus to first item (after buttons)