This PR fixes the issue #1072 where long words in chat messages overflow
outside the message container.
The fix applies Tailwind’s `break-words` utility to ensure that overly
long words wrap properly within the chat bubble.
    
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## Summary by cubic
Fixes text overflow in chat messages by adding Tailwind’s break-words to
the message content. Long words and URLs now wrap inside the bubble
instead of spilling out.

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