fix: get author by id query

src/team4.cs

@@ -223,7 +223,7 @@ namespace Team4
                 using (var command = conn.CreateCommand())
                 {
                     command.CommandText = @"
-                        SELECT author.ID
+                        SELECT *
                         FROM Authors author
                         WHERE author.ID = @aid;";
                     command.Parameters.AddWithValue("@aid", authorID);