db optimizations around names and case-sensitivity (#2749)

* generate (case-insensitive) unique names for fields that should be unique

* move name case-insensitivity down to schema level

* update changelog

ErsatzTV.Infrastructure/Data/Configurations/ProgramScheduleConfiguration.cs

@@ -10,6 +10,10 @@ public class ProgramScheduleConfiguration : IEntityTypeConfiguration<ProgramSche
     {
         builder.ToTable("ProgramSchedule");
 
+        builder.Property(p => p.Name)
+            .HasMaxLength(50)
+            .HasColumnType("varchar(50)");
+
         builder.HasIndex(ps => ps.Name)
             .IsUnique();