Is Moana birthday theme cultural appropriation?

Planning my daughter’s second birthday and she is obsessed with Moana. I was told by a friend that even if done respectfully, it’s still cultural appropriation and shouldn’t be done.

What do you think?

I’m not talking adults dressing in grass skirts and coconut bras. My daughter would dress as Moana and we’d have decor. It would be very tasteful.

Edit: I always fully intended on letting her be Moana. Was just interested in other opinions. Thank you all for your support!