v2.0.0-beta.15

Fixed:

• Fixed an issue where having settings.chatHistory.autoLoad: true will cause the chat history to disappear
• Fixed an issue where loading of chat history may cause previously disabled text area to become enabled
• Renamed id inside event.detail to botId for better clarity

Added:

• Added a new rcb-pre-load-chatbot event
• Added a new rcb-post-load-chatbot event
• Added a new useBotId hook