Limit for Emoji Use

[RedBossman23]

Is your feature request related to a problem? Please describe.
Players on my server use the chat emojis to flood the chat with spam.

Describe the solution you'd like
It would be great to see a config option to limit the number of emojis that can be in a single message. It would be a global limit, insofar as the player cannot send X number of the same emoji and the player cannot send X number of different emojis in a singular message. My chat filter can limit the amount of times someone sends a similar message, but it doesn't catch the parsing of the emojis. If this was implemented, it would improve the spam situation on my server.

Thank you.