[store] Refactor store command handler to use LINQ.

modules/ContentStore/Handler/Store.cs

@@ -37,31 +37,14 @@ public class Store : BotEventHandler
             return;
         }
         
-        var rowList = new List<List<InlineKeyboardButton>>();
+        await Bot.SendTextMessageAsync(Chat.Id, "Чего пожелаете?", replyMarkup: new InlineKeyboardMarkup(
-
+            _provider.GetServices<IRandomMediaService>()
-        var counter = 0;
+            .OrderBy(x => x.StoreItem.Order)
-        var list = new List<InlineKeyboardButton>();
+            .Select(x => x.StoreItem.ToButton(From.Id))
-        foreach (var item in _provider.GetServices<IRandomMediaService>()
+            .Chunk(2)
-                     .OrderBy(s => s.StoreItem.Order))
+            .ToList()
-        {
+            )
-            var btn = item.StoreItem.ToButton(From.Id);
+        );
-            if ((counter & 1) == 0) // 0 - even, 1 - odd
-            {
-                list = new List<InlineKeyboardButton>
-                {
-                    btn
-                };
-            }
-            else
-            {
-                list.Add(btn);
-                rowList.Add(list);
-            }
-
-            counter++;
-        }
-
-        await Bot.SendTextMessageAsync(Chat.Id, "Чего пожелаете?", replyMarkup: new InlineKeyboardMarkup(rowList));
     }
 
     [Update(InChat.Public, UpdateFlag.CallbackQuery)]