give every nav button a DOM id so it can be referenced later
give every nav button a DOM id so it can be referenced later

electron/electron-api-demos,electron/electron-api-demos,blep/electron-api-demos,PanCheng111/XDF_Personal_Analysis,blep/electron-api-demos,blep/electron-api-demos,electron/electron-api-demos,PanCheng111/XDF_Personal_Analysis,blep/electron-api-demos,PanCheng111/XDF_Personal_Analysis