Suggestion for Securing Group Creation

Hi sir, I've been implementing NIP-29 groups in 0xchat and noticed some changes in relay29. Thank you for the updates! 🙏 However, I encountered an issue during group creation. Currently, groups can be created by simply inputting an `npub` and `name`. This allows others to potentially impersonate an `npub` and create a group as if they were the group owner. I suggest enhancing the group creation process by requiring a JSON event to be sent to the server, which can also initialize some group information. Here’s a proposed structure for the JSON event: ```json { "pubkey": creator pubkey, "kind": create group event kind, "content": "", "tags": [ ["name", "Pizza Lovers"], ["picture", "https://pizza.com/pizza.png"], ["about", "A group for people who love pizza"], ["public"], // or ["private"] ["open"] // or ["closed"] ], "sig": sig } ```