Summary: Circle adds product feature list

Why It Matters: This change makes it easier for people to see what Circle does.

What Changed:

• Removed the "What is Circle?" section.
• Added a list of product features: Community, Chat, CRM, Events, Live, Courses, AI Agents, Email Marketing, Payments, Website Builder.
• Removed the "Trusted by 15,000+ of the world’s top communities" section after the new feature list.
• Removed the "70k+ reviews" section.
• Removed the "Ranked #1 by G2" section.
• Duplicated the "Loved by the best" section, including the quotes from Noele Flowers, Dana Malstaff, Ali Abdaal, and Mila Clarke.