Enhance the Chat UI and Chat Functionality in our existing App as per the attached specifications - High Level Requirements (Details available in the attached document)
1. Replace - existing dummy chat page with a new Chat UI (ChatHome)
2. Build - Chat conversation data retrieval and store functionality to and from the Chat UI
3. Build and pop-up a translucent overlay screen on the ChatHome, with the required contents from database at the required time
4. Pre-populate questions/answers that the users may choose for instead of typing.