Implement API get group detail (chatting message data) by gr code/id

[linhplus]

No description provided.

[tienphuckx]

It seem like we need to handle check the remain time before load the gr detail @secretdeveloperisme

[linhplus]

It seem like we need to handle check the remain time before load the gr detail @secretdeveloperisme

Yes, it is necessary to check expired time before responding group detail from server, but I am thinking about deleting expired groups' behavior, should we need to delete them immediately or at the end of the day