projects/common/stepper/stepper-config.ts
Merge fallback role descriptions (groupRoleDescription / stepRoleDescription) into the cascade. These feed the strip's aria-roledescription attributes when the consumer supplies none.
groupRoleDescription
stepRoleDescription
aria-roledescription
withStepperFallbackLabels(labels: CngxStepperFallbackLabels)
CngxStepperFallbackLabels
CngxStepperConfigFeature