FR03: The WeCare application shall provide the eafit students with the ability to post messages on a forum.

[jfalzaed]

Validation criteria:

• The message must be visible to all users registered on the platform, regardless of their device or browser.
• The message must be saved correctly in the database and be available for future reference.
• Users must be able to reply to an existing message, and replies must be visible in a threaded format, showing the hierarchy of replies.