fix path to image in gl3d test dashboard

Author: etpinard

devtools/test_dashboard/test_gl3d.js

@@ -35,7 +35,7 @@ plots['marker-arrays'] = require('@mocks/gl3d_marker-arrays.json');
 plots['scatter3d-colorscale'] = require('@mocks/gl3d_scatter3d-colorscale.json');
 plots['autocolorscale'] = require('@mocks/gl3d_autocolorscale.json');
 plots['nan-holes'] = require('@mocks/gl3d_nan-holes.json');
-plots['tetrahedra'] = require('@mocks/gl3d_tet.json');
-plots['surface-intensity'] = require('@mocks/gl3d_surface_intensity.json');
+plots['tet'] = require('@mocks/gl3d_tet.json');
+plots['surface_intensity'] = require('@mocks/gl3d_surface_intensity.json');
 
 plotButtons(plots, figDir);