v8.0.0

• Update H5Web from v7.1.0 to v8.0.0
  • ✨ < NX > Show NeXus axis labels when hovering dimension buttons D0, D1, ...
  • ✨ < Heatmap > Add Cubehelix colormap
  • 🐛 < NX Line > Fix wrong colors in the tooltip legend in dark mode
  • 🐛 < Complex Line > Remove unsupported scale types from drop-down selector in toolbar