Code cleanup

modules/RichSiteSummary/Handler/FeedList.cs

@@ -290,7 +290,7 @@ namespace Kruzya.TelegramBot.RichSiteSummary.Handler
                     .Where(subscriber => subscriber.Feed == feed && subscriber.SubscriberId == chat.Id)
                     .Select(subscriber => subscriber.SubscriptionId).FirstAsync();
                 
-                _dbContext.MarkAsDeleted(_dbContext.Find<Subscriber>(subId));
+                _dbContext.Subscriptions.Remove(_dbContext.Find<Subscriber>(subId));
             }
             else
             {
@@ -298,7 +298,7 @@ namespace Kruzya.TelegramBot.RichSiteSummary.Handler
                 subscription.Feed = feed;
                 subscription.SubscriberId = chat.Id;
                 
-                _dbContext.MarkAsCreated(subscription);
+                _dbContext.Subscriptions.Add(subscription);
             }
 
             await _dbContext.SaveChangesAsync();

modules/RichSiteSummary/Service/RssFetch.cs

@@ -109,7 +109,7 @@ namespace Kruzya.TelegramBot.RichSiteSummary.Service
                     await ProcessFeed(feed, dbContext);
 
                     feed.UpdatedAt = DateTime.Now;
-                    dbContext.MarkAsModified(feed);
+                    dbContext.Update(feed);
                 }
 
                 await dbContext.SaveChangesAsync();