Change dropdown, multiselect and combobox to all use the same ListBox dropdown as per React version

[lee-chase]

Is your feature request related to a problem? Please describe. The problem is one of maintenance when the React Listbox gets updated all three components need updating.

Describe the solution you'd like Copy the structure of components using the Listbox in the React version by extracting the list part to a shared component called CvListbox

Describe alternatives you've considered Keep maintaining three list boxes

[github-actions[bot]]

This issue has been marked as stale because it has required additional info or a response from the author for over 14 days. When you get the chance, please comment with the additional info requested. Otherwise, this issue will be closed in 14 days.