Add initial message to #looking-for-group

[vcarl]

[what-the-diff]

PR Summary

• Introduction of a New Channel
  A new channel, called 'lookingForGroup', has been added. The term 'channel' in this context is used to represent a separate conversation section on platforms such as Discord.

• Development of a New Feature for Thread Management
  A new function has been developed to manage "Looking For Group" discussion threads on Discord. 'Threads' are essentially sub-conversations within a channel. With this feature, thread owners are able to lock their posts, preventing further interactions from other users. Also, when a new thread is created under the 'lookingForGroup' channel, an organized and detailed message is automatically sent for user information.

• Integration of the New Feature
  The new feature for managing "Looking For Group" threads has been applied in the bot system. The 'bot' in question acts as an automated system, listening for specific events and interactions, providing services based on the set rules. The applicable function is active during the bot's setup phase, ensuring that it performs its tasks for the relevant activities and events.