This commit renames all uses of `private_message` in `unread.js` to
`direct_message`. Renamed `private_message_count` to
`direct_message_count` and `right_sidebar_private_message_count` to
`right_sidebar_direct_message_count`.
This is a prep commit for introducing new "Show unread counts for" user
display setting. We should use css classes like `.hide` to hide the unread
count from the DOM as opposed to using `$unread_count_span.hide()` because
this injects inline styles and hence we won't be able to change the `display`
style on hovering for unread counts.
This lets us simplify the long-ish ‘../../static/js’ paths, and will
remove the need for the ‘zrequire’ wrapper.
Signed-off-by: Anders Kaseorg <anders@zulip.com>
Hardik Dharmani
Lalit
Anders Kaseorg