Support better management of names of archived streams

[alya]

In zulip/zulip#26661, we plan to rework how archived streams are handled. As part of making these changes, the mobile apps should ideally match the web app in how messages in archived streams are displayed.

Viewing messages in archived streams

• When viewing messages in an archived stream (e.g.,in search results), append " (archived)" to the end of the stream name. This should be marked for translation. (We can also consider using a different font or a pill in the header bar to indicate archived streams, but just "(archived)" should be fine to start with.)
• Topic links work for archived streams should work. Currently, the server doesn't send data on archived streams to clients. See related discussion here.

Web app / server issue:

• Better management of names of archived streams zulip#26661