Plate Viewer Plate field can be too narrow

[dlogan]

When viewing multiple plates in Plate Viewer, the Plate filed dropdown above each heatmap is too narrow. If the plates are named similarly and the names are even a little bit long, then the plates cannot be told apart easily:

Yes, one can click the dropdown to see them, but I send screenshots to folks and they can't interact with the plots.

[jhung0]

default changed in c6607ac