🚧 Add modules to DI, rename classes

Core/Startup.cs

@@ -24,7 +24,12 @@ namespace Kruzya.TelegramBot.Core
         {
             services.AddTelegramBot();
             services.AddLogging(builder => builder.AddConsole());
+            
+            // Add all modules to DI with Core instance.
+            services.AddSingleton<Core>(_core);
+            foreach (var module in _core.Modules) services.AddSingleton(module.GetType(), module);
 
+            // Trigger module handlers.
             _core.Modules.ConfigureServices(services);
         }