Build prototype A

[rebeccaalpert]

Build out A flow from https://www.figma.com/design/MSr6kVEOuAxmPOkjg7x8PO/branch/AGQgJNgO6VoHnUJmjmluWl/P[…]-%26-Extensions?m=auto&node-id=5897-11839&t=YxdzOHKdwnTtJEcQ-1.

See https://github.com/rebeccaalpert/patternfly-react-seed-chatbot-demo.