Adds a shared note to both help center articles with sections on
subscribing users to streams, documenting that an automated private
message from the notification bot is sent to a user when subscribed
to a stream by another user.
Links to the article on the notification bot, and clarifies text in
that article regarding automated private messages.
Updates the help center documentation on subscribing users to
streams to include description for doing so via mentioning a
user while composing a message.
Fixes#21796.
Adds a new help center article focused on managing a single
user's stream subscriptions.
Creates a shared file for instructions to navigate to a user's
full profile via the right sidebar, which is used in three help
center articles.
Fixes#21795.
Extends the documentation on unsubscribing users from streams to
include an alternate method via the user's full profile, which
is useful for cases where admins may need to unsubscribe a single
user from multiple streams.
Fixes#21379.