Show number of replies/reblogs/favourites in status footer of curses ui

When parsing "replies_count" from status data, we allow the field to be
absent as it got added in version 2.5.0 (in constrast with other ones,
added in 0.1.0) as there might be servers with that version around.

toot/ui/app.py

@@ -221,6 +221,12 @@ def footer_lines(self, status):
         if status['reblogged']:
             yield "↷ Boosted", Color.CYAN
 
+        yield (
+            "{replies_count} replies, "
+            "{reblogs_count} reblogs, "
+            "{favourites_count} favourites"
+        ).format(**status), Color.CYAN
+
     def draw(self, status):
         self.window.erase()
         self.window.box()

toot/ui/parsers.py

@@ -16,11 +16,14 @@ def parse_status(status):
         'created_at': created_at,
         'content': content,
         'favourited': status.get('favourited'),
+        'favourites_count': _status['favourites_count'],
         'id': status['id'],
         'in_reply_to_id': _status.get('in_reply_to_id'),
         'media_attachments': _status['media_attachments'],
         'url': _status['url'],
         'reblogged': status.get('reblogged'),
+        'reblogs_count': _status['reblogs_count'],
+        'replies_count': _status.get('replies_count', 0),
         'spoiler_text': spoiler_text,
         'sensitive': _status['sensitive'],
         'show_sensitive': False,