fixes error on first load of a new user (#47)

Author: sei-aschlackman

Player.Api/Services/UserClaimsService.cs

@@ -150,17 +150,22 @@ private async Task<UserEntity> ValidateUser(Guid subClaim, string nameClaim, boo
                 };
 
                 _context.Users.Add(user);
-                await _context.SaveChangesAsync();
             }
             else
             {
                 if (nameClaim != null && user.Name != nameClaim)
                 {
                     user.Name = nameClaim;
                     _context.Update(user);
-                    await _context.SaveChangesAsync();
                 }
             }
+
+            try
+            {
+                await _context.SaveChangesAsync();
+            }
+            catch (Exception)
+            { }
         }
 
         return user;