feat: Revise PricingTiers component for enhanced clarity and user engagement

- Updated SVG icons in the PricingTiers component to better represent features and benefits.
- Enhanced the fee breakdown section with a transparent fee structure, detailing platform, Stripe, and optional AI tool fees.
- Introduced a new section for accepted payment methods, including global and regional options, to improve user understanding of payment capabilities.
- Added a crypto payments section and a roadmap for Web3 integration, highlighting future developments.

These changes aim to provide users with clearer information and a more engaging experience when exploring pricing options.

Author: gunta