Inter-user chat and commenting for Notes
This is cool, we now have real-time updates in Notes as we edit or delete or create notes. Let's now take it to the next level and implement something akin to inter-user chatting.
It's possible to pivot our Notes application concept and take it in the direction of a social network. In most such networks, users post thing (notes, pictures, videos, and so on), and other users comment on those things. Done well, these basic elements can develop a large community of people sharing notes with each other. While the Notes application is kind of a toy, it's not too terribly far from being a basic social network. Commenting the way we will do now is a tiny step in that direction.
On each note page, we'll have an area to display messages from Notes users. Each message will show the user name, a time stamp, and their message. We'll also need a method for users to post a message, and we'll also allow users to delete messages.
Each...
