Nice idea. However, I don't like how it says "emojis" :p It's a little bit clickbait-ish, as by emojis most people except and other actual emojis. What you are proposing is called emoticons.
Other than that, you've got a good plugin, keep it up.
Thank you for the review. You are right and I will add that to the title. However I am pretty sure you can add actual emojis yourself with a custom texture pack & special symbols, not 100% sure how it works exactly but I can see it possibly working.
Version: 1.1
Fantastic and unique idea for a resource. I haven't used this, but the code isn't bad and looks logical. You could in the future add a feature for players to add their own custom emojis that only they can use if thats something you'd be interested in doing. Well done!