Update formatting code for double-nested lambdas

[ajcvickers]

Currently the code doesn't handle indents correctly. For example, scaffolded temporal table configuration:

    protected override void OnModelCreating(ModelBuilder modelBuilder)
    {
        modelBuilder.Entity<Blog>(entity =>
        {
            entity.ToTable(tb => tb.IsTemporal(ttb =>
    {
        ttb.UseHistoryTable("BlogsHistory", "dbo");
        ttb
            .HasPeriodStart("PeriodStart")
            .HasColumnName("PeriodStart");
        ttb
            .HasPeriodEnd("PeriodEnd")
            .HasColumnName("PeriodEnd");
    }
));
        });

        modelBuilder.Entity<Post>(entity =>
        {
            entity.ToTable(tb => tb.IsTemporal(ttb =>
    {
        ttb.UseHistoryTable("PostsHistory", "dbo");
        ttb
            .HasPeriodStart("PeriodStart")
            .HasColumnName("PeriodStart");
        ttb
            .HasPeriodEnd("PeriodEnd")
            .HasColumnName("PeriodEnd");
    }
));

[ajcvickers]

/cc @maumar

[bricelam]

I made some progress on this in PR #28358. The lambda is now indented. But the indentation is a little weird since we don't break multi-line arguments into properly. Here are the remaining changes I'd like to see:

-                 entity.ToTable(tb => tb.IsTemporal(ttb =>
+                 entity.ToTable(
+                     tb => tb.IsTemporal(
+                         ttb =>
                          {
                              ttb.UseHistoryTable(""CustomerHistory"");
                              ttb
                                  .HasPeriodStart(""PeriodStart"")
                                  .HasColumnName(""PeriodStart"");
                              ttb
                                  .HasPeriodEnd(""PeriodEnd"")
                                  .HasColumnName(""PeriodEnd"");
                          }));