Implementing Inline feature to get media via inline in chats and a command handler for groups

[SurajRaj4542]

1. Create a dump channel for the medias meanwhile the bot will send an image or gif on user's request for specific links. After media is published in dump we can edit the earlier file with the video which was requested.

• Adding this feature for every links might be too much for server, so we can just implement it for Instgram links.

2. Adding command handler for groups to download the links, rather downloading every links, though it should only for groups.