Sp-card destroys built in sp-checkbox

[Karmalakas]

@roqvist

that causes a conflict on startup trying to register custom element sp-checkbox (since it’s already registered)

Based on this @indranil’s post I was under impression, that when you import SWC, it overrides Spectrum UXP widget

@indranil

Once any sp-* component is imported from the SWC package it supersedes the native Spectrum UXP widget.