fix: replace inline SVGs with $icon() helper (FE-002)
Convert 90 inline SVG icons to use the shared $icon() helper function
across shop and vendor templates for consistency and maintainability.
Templates updated:
- Shop: checkout, products, login, register, forgot/reset-password
- Shop account: addresses, dashboard, messages, order-detail, orders, profile
- Vendor: billing, login, onboarding, team, landing pages (4 variants)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Samir Boulahtit
8e539634aa