Copilot mode: add functions to programmatically open and close chatbot window

[diehmniklas]

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Is your feature request related to a problem? Please describe. Right now, you can toggle the copilot window by using the function toggleChainlitCopilot. This was part of #1638 . This is useful, however, it would be better if you could also programmatically open and close the window. Especially, you could open the chat after X seconds without disturbing users which already opened the chatbot.

Describe the solution you'd like I would add two new function: openChainlitCopilot and closeChainlitCopilot. They would be implemented in a similar way like the already existing function toggleChainlitCopilot is implemented.

Describe alternatives you've considered Right now, I don't see alternatives except for not added the features.

Additional context I think the effort is manageable, so I can work on that feature if it is approved.