Add subscription mini app support

bot/keyboards/inline/user_keyboards.py

@@ -1,5 +1,5 @@
 from aiogram.utils.keyboard import InlineKeyboardBuilder, InlineKeyboardButton
-from aiogram.types import InlineKeyboardMarkup
+from aiogram.types import InlineKeyboardMarkup, WebAppInfo
 from typing import Dict, Optional, List
 
 from config.settings import Settings
@@ -21,9 +21,20 @@ def get_main_menu_inline_keyboard(
     builder.row(
         InlineKeyboardButton(text=_(key="menu_subscribe_inline"),
                              callback_data="main_action:subscribe"))
-    builder.row(
-        InlineKeyboardButton(text=_(key="menu_my_subscription_inline"),
-                             callback_data="main_action:my_subscription"))
+    if settings.SUBSCRIPTION_MINI_APP_URL:
+        builder.row(
+            InlineKeyboardButton(
+                text=_(key="menu_my_subscription_inline"),
+                web_app=WebAppInfo(url=settings.SUBSCRIPTION_MINI_APP_URL),
+            )
+        )
+    else:
+        builder.row(
+            InlineKeyboardButton(
+                text=_(key="menu_my_subscription_inline"),
+                callback_data="main_action:my_subscription",
+            )
+        )
 
     referral_button = InlineKeyboardButton(
         text=_(key="menu_referral_inline"),