Cannot @mention users

[jpgklassen]

Including @username in a message in Habitica converts the @username to a link and pings username. Including @username in a message in Habitica Chat Extension does nothing. The @username is submitted as plain text, and username is not pinged.

[CraigInches]

@jpgklassen I was not able to replicate the desired situation. Even in the native chat a user was not pinged/pm'd to alert them of the mention.

I will do some testing with the current release, but I have a PR which replicates behaviour seen in native chat, username is a link to profile. Would appreciate if you could give it a whirl and see what you think: https://github.com/CraigInches/habitica-chat-extension/tree/translation_link