feat: give group admins the ability to stop games in their group

fixes #41

Author: d-Rickyy-b

blackjackbot/commands/game/commands.py

@@ -81,8 +81,16 @@ def stop_cmd(update, context):
 
     game = GameStore().get_game(chat.id)
 
+    user_id = user.id
     try:
-        game.stop(user.id)
+        if chat.type == "group" or chat.type == "supergroup":
+            # If yes, get the chat admins
+            admins = context.bot.get_chat_administrators(chat_id=chat.id)
+            # if user.id in chat admin IDs, let them end the game with admin powers
+            if user.id in [x.user.id for x in admins]:
+                user_id = -1
+
+        game.stop(user_id)
         update.effective_message.reply_text(translator("game_ended"))
     except errors.InsufficientPermissionsException:
         update.effective_message.reply_text(translator("mp_only_creator_can_end"))