Refactor: Move IHost implementation to IBot interface

The BotApp class no longer implements the IHost interface directly.
Instead, the IBot interface now extends IHost, centralizing hosting
responsibilities within the IBot interface. This change ensures that
any class implementing IBot will also need to implement IHost.
Additionally, the necessary using directive for Microsoft.Extensions.Hosting
was added to IBot.cs.

Author: bvdcode

Sources/TelegramBot/BotApp.cs

@@ -20,7 +20,7 @@ namespace TelegramBot
     /// <summary>
     /// Telegram bot application.
     /// </summary>
-    public class BotApp : IBot, IHost
+    public class BotApp : IBot
     {
         private bool _disposed = false;
         private readonly ILogger<BotApp> _logger;

Sources/TelegramBot/IBot.cs

@@ -1,12 +1,13 @@
 using System.Threading;
 using TelegramBot.Controllers;
+using Microsoft.Extensions.Hosting;
 
 namespace TelegramBot
 {
     /// <summary>
     /// Interface for bot.
     /// </summary>
-    public interface IBot
+    public interface IBot : IHost
     {
         /// <summary>
         /// Maps controllers inherited from <see cref="BotControllerBase"/>.