Renaming scrollbar widget label

[denglert]

Although one can rename the axis labels by

all_ds = all_ds.redim(cba=('cba', r'cos(b-a)'), tb=('tb', 'tan(b)'), mA_bin=('mA_bin', 'm_A [GeV]'))

the label is not changed accordingly when a scrollbar is created. E.g.:

a  = all_ds.to(hv.Points, kdims=['cba', 'tb'], vdims=[], groupby=['mA_bin'])

still shows mA_bin not m_A [GeV].

[philippjfr]

Thanks, adding a Dimension.label is fairly recent so the sliders aren't using it yet.

[philippjfr]

Fixed in #1205.