public async Task RemoveDonationAsync(Donation donation)
{
await Doc.Collection("Donations").Document(donation.UID).DeleteAsync();
Amount -= donation.Amount;
await Doc.UpdateAsync(new { Amount });
}
public async Task AddDonationAsync(Donation donation)
{
await Doc.Collection("Donations").AddAsync(donation);
Amount += donation.Amount;
await Doc.UpdateAsync(new { Amount });
}
