mongodb-chatbot-ui-v0.15.0

• (EAI-930): Retrieval tool call (feature branch) (#763) (6c5b4b5)
• (EAI-1083) [UI] Update "experimental" language and pill on chatbot (#767) (4e2b776)
• (EAI-1081) Add link to FAQ doc in Chatbot message feed (#766) (3dc3806)
• Add client handler for suggested prompt click (#764) (e022867)