[XB] Conversation Duplicate Warning 1.0.0

Warn users when they are about to create a conversation with recipients they have recently contacted.

This add-on helps reduce duplicate conversations by checking recently created conversations and displaying a warning when a similar participant combination is detected.

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Features:​

• Duplicate Conversation Detection: Check recently created conversations for matching recipients.
• Participant Matching: Detect conversations involving the same participants.
• Recent Conversations Check: Focus on conversations created within a configurable time frame.
• Title Check: Optionally check for similar conversation titles (starts with, ends with, or contains).
• Conversation Links: Display links to matching conversations for quick access.

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Useful for:​

• Cleaner Inbox Management: Reduce unnecessary duplicate conversations.
• Better Communication: Keep discussions in a single conversation.
• User Convenience: Quickly find and continue existing conversations.
• 🛠 Community Organization: Prevent fragmented private discussions.

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Screenshots:​