private void RemoveBt_Clicked(object sender, EventArgs e)
{
if (sender is Button button)
{
if (Visitor.Friends.Contains(Visitee))
{
Visitor.Friends.Remove(Visitee);
_localData.DeleteFriend(Visitor, Visitee);
button.Text = AddString;
}
else
{
Visitor.Friends.Add(Visitee);
_localData.AddNewFriend(Visitor, Visitee);
button.Text = RemoveString;
}
}
}
