4.1.0

feat: add progress bar component support to offer rewards

Adds a new ProgressBar component type and integration with OfferComponents
to support tracking offer redemption progress in reward displays. The progress
bar component includes total redemptions allowed, current progress count,
display label, and segmented view option.

Key changes:
- Add new ProgressBar class with total, currentProgress, label, and segmented fields
- Add PROGRESS_BAR component type to ComponentType enum with visitor pattern support
- Add optional progressBar field to OfferComponents with builder methods
- Include progress bar in equality, hashCode, and toString implementations

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