User Mentions with @username Tagging

It would be great to add support for @username mentions across the WPFolks platform, similar to how mentions work on WordPress.org and other community platforms.

This would help improve:

• Community conversations and collaboration
• Faster responses in discussions/comments
• Better engagement between members
• Easier notifications when someone is mentioned
• More interactive plugin, snippet, and roadmap discussions

Example:
@abdullah17 → sends notification to the tagged user and links to their profile.

Suggested areas:

• Comments
• Posts
• Roadmap discussions
• Community threads
• Snippets and plugin showcase replies

This feature would make communication much smoother as the community grows.