feature: birthday 🎉

[Pantotone]

For the users that doesn't mind sharing their birthday date, could have a input on the settings to insert their birthday date (and also remove easily if they want)

On their birthday date, could also add a birthday badge (maybe a party-hat? 🎉) to indicate it's their birthday.

[DanielHe4rt]

The problem would be: how to validate it? Because people will be trolling a lot mostly. But still a good idea ngl.