Discrete slider doesn't respect orientation value

[ananis25]

The discrete slider widget doesn't display vertically despite passing that as the value for orientation.

ALL software version info

panel==0.10.0a35
bokeh==2.3.0.dev2

browsers: firefox, chrome
OS: MacOS client, Centos 7 on server

Description of expected behavior and the observed behavior

Display a vertical widget when orientation passed is "vertical".

Complete, minimal, self-contained example code that reproduces the issue

import panel as pn
pn.extension()

discrete_slider = pn.widgets.DiscreteSlider(name='Discrete Slider', options=[2, 4, 8, 16, 32, 64, 128], value=32, orientation='vertical')
discrete_slider
# discrete_slider.servable()