update tuple parsing on phenograph viz

app.py

@@ -263,10 +263,14 @@ def phenograph(cytof_cohort):
         show_plots=False,
         plot_together=False)
 
-    umap = figs_scatter['cohort']
-    expression = figs_exps['cohort']['cell_sum']
+    umap_fig, ax_scatter = figs_scatter['cohort']
+    ax_scatter.set_title('')
+    ax_scatter.set_xlabel('UMAP1')
+    ax_scatter.set_ylabel('UMAP2')
 
-    return umap, cytof_cohort
+    # expression = figs_exps['cohort']['cell_sum']
+
+    return umap_fig, cytof_cohort
 
 def cluster_interaction_fn(cytof_img, cytof_cohort):
     # avoid calling the clustering algorithm again. cohort is guaranteed to have one phenogrpah