Fix duplicated cluster creation. Create separate functions for creating and expanding clusters. Rename the cluster triggering function. Add a refresh function
Fix duplicated cluster creation. Create separate functions for creating and expanding clusters. Rename the cluster triggering function. Add a refresh function

hms-dbmi/higlass,hms-dbmi/higlass,hms-dbmi/higlass,hms-dbmi/higlass,hms-dbmi/4DN_matrix-viewer,hms-dbmi/4DN_matrix-viewer,hms-dbmi/4DN_matrix-viewer