added scan_messages to Kwaylon to incorporate the async lock on the database file

src/kwaylon/kwaylon.py

@@ -109,8 +109,8 @@ class Kwaylon(Client):
                         msg = await self.fetch_message(most)
                         await message.reply(f'Most {emoji_ref} in past {days} days\n{msg.jump_url}')
 
-                else:
-                    await message.reply(f"NObody (in the past {days} days)...gah, leave me alone!")
+                # else:
+                #     await message.reply(f"NObody (in the past {days} days)...gah, leave me alone!")
 
                 LOGGER.info(f'Done')
 
@@ -150,6 +150,10 @@ class Kwaylon(Client):
         channel = await guild.fetch_channel(row['channel_id'])
         return await channel.fetch_message(row['msg_id'])
 
+    async def scan_messages(self, **kwargs):
+        async with self.lock:
+            await self.data.scan_messages(client=self, **kwargs)
+
 
 def get_emoji_name(string: str) -> str:
     if (m := re.search('<:(?P<name>\w+):(?P<id>\d+)>', string)):