phsl / new-api

Summary:
• Updated `PricingTopSection.jsx` to conditionally render `PricingVendorIntroWithSkeleton` only when `isMobile` is false.

Details:
1. Wrapped vendor-intro block in `!isMobile` check, preventing unnecessary content on small screens.
2. Kept desktop experience unchanged; no impact on other features.
3. Lint check passed with no new issues.

Result:
Cleaner mobile UI with improved performance and visual focus.