Support populating the LocalAddress field in the system info
endpoint based on the x-forwarded-host and x-forwarded-proto header.
The x-forwarded-host header must contain both the host and port for
the url to be properly constructed.
Behind network configuration option that is disabled by default.
Fully initialize the configuration manager at the init stage
```
Failed Jellyfin.Server.Integration.Tests.Controllers.ActivityLogControllerTests.ActivityLog_GetEntries_Ok [2 s]
Error Message:
MediaBrowser.Common.Extensions.ResourceNotFoundException : Configuration with key metadata not found.
Stack Trace:
at Emby.Server.Implementations.AppBase.BaseConfigurationManager.<>c__DisplayClass43_0.<GetConfiguration>b__0(String k) in D:\a\1\s\Emby.Server.Implementations\AppBase\BaseConfigurationManager.cs:line 309
at System.Collections.Concurrent.ConcurrentDictionary`2.GetOrAdd(TKey key, Func`2 valueFactory)
at Emby.Server.Implementations.AppBase.BaseConfigurationManager.GetConfiguration(String key) in D:\a\1\s\Emby.Server.Implementations\AppBase\BaseConfigurationManager.cs:line 300
at MediaBrowser.Common.Configuration.ConfigurationManagerExtensions.GetConfiguration[T](IConfigurationManager manager, String key) in D:\a\1\s\MediaBrowser.Common\Configuration\IConfigurationManager.cs:line 88
at MediaBrowser.Controller.Library.MetadataConfigurationExtensions.GetMetadataConfiguration(IConfigurationManager config) in D:\a\1\s\MediaBrowser.Controller\Library\MetadataConfigurationStore.cs:line 28
at Emby.Server.Implementations.Library.ResolverHelper.SetDateCreated(BaseItem item, IFileSystem fileSystem, FileSystemMetadata info) in D:\a\1\s\Emby.Server.Implementations\Library\ResolverHelper.cs:line 159
at Emby.Server.Implementations.Library.ResolverHelper.EnsureDates(IFileSystem fileSystem, BaseItem item, ItemResolveArgs args) in D:\a\1\s\Emby.Server.Implementations\Library\ResolverHelper.cs:line 153
at Emby.Server.Implementations.Library.ResolverHelper.SetInitialItemValues(BaseItem item, ItemResolveArgs args, IFileSystem fileSystem, ILibraryManager libraryManager) in D:\a\1\s\Emby.Server.Implementations\Library\ResolverHelper.cs:line 81
at Emby.Server.Implementations.Library.LibraryManager.ResolveItem(ItemResolveArgs args, IItemResolver[] resolvers) in D:\a\1\s\Emby.Server.Implementations\Library\LibraryManager.cs:line 480
at Emby.Server.Implementations.Library.LibraryManager.ResolvePath(FileSystemMetadata fileInfo, IDirectoryService directoryService, IItemResolver[] resolvers, Folder parent, String collectionType, LibraryOptions libraryOptions) in D:\a\1\s\Emby.Server.Implementations\Library\LibraryManager.cs:line 618
at Emby.Server.Implementations.Library.LibraryManager.ResolvePath(FileSystemMetadata fileInfo, Folder parent) in D:\a\1\s\Emby.Server.Implementations\Library\LibraryManager.cs:line 536
at Emby.Server.Implementations.Library.LibraryManager.CreateRootFolder() in D:\a\1\s\Emby.Server.Implementations\Library\LibraryManager.cs:line 732
at Emby.Server.Implementations.Library.LibraryManager.get_RootFolder() in D:\a\1\s\Emby.Server.Implementations\Library\LibraryManager.cs:line 180
at Emby.Server.Implementations.IO.LibraryMonitor.Start() in D:\a\1\s\Emby.Server.Implementations\IO\LibraryMonitor.cs:line 135
at Emby.Server.Implementations.IO.LibraryMonitorStartup.RunAsync() in D:\a\1\s\Emby.Server.Implementations\IO\LibraryMonitorStartup.cs:line 26
at Emby.Server.Implementations.ApplicationHost.StartEntryPoints(IEnumerable`1 entryPoints, Boolean isBeforeStartup)+MoveNext() in D:\a\1\s\Emby.Server.Implementations\ApplicationHost.cs:line 541
at System.Threading.Tasks.Task.WhenAll(IEnumerable`1 tasks)
at Emby.Server.Implementations.ApplicationHost.RunStartupTasksAsync(CancellationToken cancellationToken) in D:\a\1\s\Emby.Server.Implementations\ApplicationHost.cs:line 525
at Jellyfin.Server.Integration.Tests.JellyfinApplicationFactory.CreateServer(IWebHostBuilder builder) in D:\a\1\s\tests\Jellyfin.Server.Integration.Tests\JellyfinApplicationFactory.cs:line 101
at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory`1.EnsureServer()
at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory`1.CreateDefaultClient(DelegatingHandler[] handlers)
at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory`1.CreateDefaultClient(Uri baseAddress, DelegatingHandler[] handlers)
at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory`1.CreateClient(WebApplicationFactoryClientOptions options)
at Microsoft.AspNetCore.Mvc.Testing.WebApplicationFactory`1.CreateClient()
at Jellyfin.Server.Integration.Tests.Controllers.ActivityLogControllerTests.ActivityLog_GetEntries_Ok() in D:\a\1\s\tests\Jellyfin.Server.Integration.Tests\Controllers\ActivityLogControllerTests.cs:line 21
--- End of stack trace from previous location ---
```
