Serve pages and home from PocketBase, drop the file-based content layer

Elternbeirat.Web/Program.cs

@@ -2,7 +2,6 @@ using Elternbeirat.Contracts;
 using Elternbeirat.PocketBase;
 using Elternbeirat.Web.Components;
 using Elternbeirat.Web.Features.Events;
-using Elternbeirat.Web.Services;
 using Microsoft.AspNetCore.HttpOverrides;
 
 var builder = WebApplication.CreateBuilder(args);
@@ -18,10 +17,6 @@ var pocketBaseUrl = builder.Configuration["PocketBase:BaseUrl"]
 builder.Services.AddHttpClient<PocketBaseClient>(client =>
     client.BaseAddress = new Uri(pocketBaseUrl));
 
-// Content is read once at startup and cached -> singletons.
-builder.Services.AddSingleton<PageService>();
-builder.Services.AddSingleton<PostService>();
-
 var app = builder.Build();
 
 // NPM terminates TLS and is the only way to reach the container (no port