What does thank you 😘 mean from a girl?

Meaning of the Kissy Face Icon

Known commonly as the kissy face emoji, this playful and flirty symbol represents sending a kiss to someone special. It can be used to express gratitude, similar to saying "Thank you," or to convey affection towards something or someone. However, since it carries a flirtatious connotation, it's recommended to be cautious when using it in professional settings.