Add PVC configuration option to JupyterHub

[romeokienzler]

Is your feature request related to a problem? Please describe.
ODH JH comes with a pre-configured 20GB PVC which can't be increased from any ODH UI

Describe the solution you'd like
An ODH UI function to increase the JH PVC size

Describe alternatives you've considered
Login to open shift admin console, find PVC, resize and restart pods

[LaVLaS]

@romeokienzler This will be added in the next release of odh-dashboard. See opendatahub-io/odh-dashboard#119

[shalberd]

in any case, whether via ODH UI or OCP UI, this requires a storageclass that has set allowVolumeExpansion: true. Good idea regarding functionality, though.