V15: Fix draft being seeded

[Zeegaan]

Notes

• When saving any seeded document, the draft version would also end up being seeded, this PR remedies that, by checking if its a draft node.
• Passes preview into GetEntryOptions, this way we do not seed draft nodes when saving.

How to test

• You can check by creating one document, and then restarting the site.
• Set a breakpoint in GetEntryOptions
• Go and save the document, assert that the draft verison now gets the correct entry options (not the seeded one)

using Microsoft.Extensions.Caching.Hybrid;
using Umbraco.Cms.Core.Composing;
using Umbraco.Cms.Core.Models;

namespace _15;

public class DemoComposer : IComposer
{
    public void Compose(IUmbracoBuilder builder)
    {
        
        builder.Services.AddOptions<CacheSettings>().Configure(x =>
        {
            x.Entry.Document.LocalCacheDuration = TimeSpan.FromSeconds(5);
        });
    }
}