UI tweeks. Back out repositioning of track close button
UI tweeks. Back out repositioning of track close button

igvteam/igv.js,NabaviLab/CNV-Visualizer,igvteam/igv.js,NabaviLab/CNV-Visualizer,NabaviLab/CNV-Visualizer,NabaviLab/CNV-Visualizer,NabaviLab/CNV-Visualizer