Updates the labels in the"Messages set by client" chart so that
the Flutter app is no longer labeled as "beta".
The React Native app is now labeled as "old". And the older
Android and iOS apps are now labeled as "ancient".
Updates the labels in the "Messages sent by client" analytics chart
for the user-agent/client names for the Flutter mobile app, which
can be "ZulipFlutter" or "ZulipMobile/flutter".
Fixes#28220.
Updates translated JsonableError strings that relate to streams
to use channel instead of stream. Separated from other error string
updates as this is a dense area of changes for this rename.
Part of stream to channel rename project.
Updates the labels for the "Messages sent by recipient type" chart
to use "channel", and updates the error message that would be sent
for the "messages_sent_by_stream" chart (that has not yet been
implemented) for a missing channel/stream.
Part of the stream to channel rename project.
As a preliminary step for including graphs of StreamCount data in our
analytics pages, add API support for fetching the chart data.
Care is taken to limit access to streams that the current user has
access to, which isn't necessary in similar views where the current
user is a server administrator by assumption.
Fixes part of #19653.
Co-authored-by: Tim Abbott <tabbott@zulip.com>
When calling some functions or assigning values to certain attributes,
the arguments/right operand do not match the exact type that the
functions/attributes expect, and thus we fix that by converting types
beforehand.
