make plot list in test dashboard scrollable so that we don't run out of buttons
make plot list in test dashboard scrollable so that we don't run out of buttons

etpinard/plotly.js,iongroup/plotly.js,asolagmbh/plotly.js,iongroup/plotly.js,plotly/plotly.js,asolagmbh/plotly.js,plotly/plotly.js,etpinard/plotly.js,etpinard/plotly.js,iongroup/plotly.js,aburato/plotly.js,asolagmbh/plotly.js,plotly/plotly.js,plotly/plotly.js,aburato/plotly.js