Also create dedicated channels and topics sections in sidebar.
Makes 'start a new topic', a section in introduction to topics
page.
Co-authored-by: Prakhar Pratyush <prakhar@zulip.com>
- Documents the new contextually-aware button since the instructions
now differ depending on whether you're currently in a direct message
view or not.
- Simplifies the new topic instructions by combining the first two
tabs into a single web/desktop tab, with an optional step 2 to
change the destination stream.
Fixes#27159.
These files are not Jinja2 templates, so there's no reason that they needed
to be inside `templates/zerver`. Moving them to the top level reflects their
importance and also makes it feel nicer to work on editing the help center content,
without it being unnecessary buried deep in the codebase.
