Updated translation service and finished splitting out responsibilities for now

FictionArchive.Service.Shared/Extensions/DatabaseExtensions.cs

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+using FictionArchive.Service.Shared.Services.Database;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace FictionArchive.Service.Shared.Extensions;
+
+public static class DatabaseExtensions
+{
+    public static IServiceCollection RegisterDbContext<TContext>(this IServiceCollection services,
+        string connectionString) where TContext : FictionArchiveDbContext
+    {
+        services.AddDbContext<TContext>(options =>
+        {
+            options.UseNpgsql(connectionString, o =>
+            {
+                o.UseNodaTime();
+            });
+        });
+        return services;
+    }
+}

FictionArchive.Service.Shared/Extensions/GraphQLExtensions.cs

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+using FictionArchive.Service.Shared.Services.GraphQL;
+using HotChocolate.Execution.Configuration;
+using HotChocolate.Types.NodaTime;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace FictionArchive.Service.Shared.Extensions;
+
+public static class GraphQLExtensions
+{
+    public static IRequestExecutorBuilder AddDefaultGraphQl<TQuery, TMutation>(this IServiceCollection services) where TQuery : class where TMutation : class
+    {
+        return services.AddGraphQLServer()
+                .AddQueryType<TQuery>()
+                .AddMutationType<TMutation>()
+                .AddType<UnsignedIntType>()
+                .AddType<InstantType>()
+                .AddMutationConventions(applyToAllMutations: true)
+                .AddFiltering(opt => opt.AddDefaults().BindRuntimeType<uint, UnsignedIntOperationFilterInputType>())
+                .AddSorting()
+                .AddProjections();
+    }
+}