US1: Remove limitation on the number of messages allowed to be send in a minute (Backend logic)

[ThomasJXiao]

No description provided.

[ThomasJXiao]

Acceptance criteria:

1. Given the student is logged into their Nodebb account and has chosen someone to chat with, when they send multiple messages in any chat within a minute, then all messages should be delivered without any delay or constraints.
2. Given the student is part of a chat with multiple members, when they send multiple messages in rapid succession, then each message should appear in the correct order on the recipients' screens.
3. Given the student sends multiple messages within a minute, when the messages contain different content (text, links, emojis, or attachments), then all message types should be sent successfully without constraints.

Assumption: The limiting is set by the backend code of NodeBB, not by another external web limitation.
Subjected to change if changes to an assumption