Add a sidebar with cross-wiki sources and pages of unread notifications.
The filter allows the user to fetch notifications from a foreign source
and specific pages if those exist.
Bug: T129366
Change-Id: I57d827a47f80274d75364c2099a9624049a26834
I thought the name was confusing, and would be even more so
if we get real notifications from other sources.
Meanwhile also split $crossWikiSummary into 2 properties:
- 1 with the class
- 1 to indicate if it should be used
Change-Id: I0e83be7924c8c77680ea1ada3f2bd6a190ce6149
Split and refactor Echo network handling and create a proper API
layer for the UI to use consistently. Split Echo's API methods into
its own module so they can be loaded along with the initialization
script and manage the API requests.
Change-Id: I0526a14bb8cc0d9729a303e24ab6e43259cc86bb
