[✨ FEATURE] Add newspaces to chat input

[enarroied]

🔍 Feature Description

Hi!

When I create a chat element with;

tgb.chat("{messages}", users="{users}", sender_id="{users[0]}", on_action=chat)

It creates a chat interface. But the input field doesn't accept newlines, even if I add \n, the screen would print the \n. Even if I copy-paste a text with a newline into the chat input, it transforms them into spaces.

It would be nice to be able to add newlines (either from copy-pasted text or from a ctrl + enter command). This would make chatting a way better experience.

📜 Code of Conduct

• I have checked the existing issues to avoid duplicates.
• I am willing to work on this issue (optional)

✅ Acceptance Criteria

• A working demo or example code (if applicable) is provided.
• Integration tests demonstrate the new functionality.
• Any new code is covered by unit tests.
• Code coverage remains at least 90%.
• Related documentation updates and release notes are created.