Summary: Respond.io adds detailed pricing page

Why It Matters: This shows Respond.io is making its pricing clear. This helps customers understand costs better.

What Changed:

• The page title changed from a general product description to "Pricing | Plans Built to Scale Your Business."
• A new section was added with detailed pricing plans: Starter, Growth, Advanced, and Enterprise.
• Pricing details include monthly/yearly costs, features for each plan, and user limits.
• A "Monthly Active Contacts" pricing model is explained.
• A "Compare plans" table was added, showing features side-by-side.
• A "Frequently asked questions" section about pricing and billing was added.
• The "New 🌍 WhatsApp API Calling is now available globally!" banner was removed.
• The footer content was slightly reordered, but the links remain the same.