Dynamic Chat Window Resizing for Shared Chatbot Demos

When sharing a chatbot with a potential customer for demo or testing purposes using the share function, the chat window should dynamically adjust to the user's browser size and resolution. Currently, users may need to scroll down to access the input field, which affects usability. The chat interface should automatically scale to fit the available screen space, ensuring that the entire conversation, including the input field, is always visible without requiring manual scrolling.