The user has an option for setting global
notification settings as well as the same settings
for individual streams. Currently the user has to
keep track of each unmatched stream and then visit
each individual stream whose settings he wants to
update.
Thus this adds a dedicated UI table allowing the user
to view and update the notifications of the specific
streams which differs from the global settings.
It is located on the same page where the user defined
global notification settings can be modified.
Fixes#9228.
Ryan Rehman