feat(i18n): plurals support (#278)

locales/zh-CN.json

@@ -97,7 +97,7 @@
   "notification": {
     "favourited_post": "点赞了你的帖文",
     "followed_you": "关注了你",
-    "followed_you_count": "{0} 人关注了你",
+    "followed_you_count": "{n} 人关注了你",
     "missing_type": "未知的通知类型：",
     "reblogged_post": "转发了你的帖文",
     "request_to_follow": "请求关注你",
@@ -148,7 +148,7 @@
     "yesterday": "昨天"
   },
   "timeline": {
-    "show_new_items": "展示 {0} 条新帖文"
+    "show_new_items": "展示 {n} 条新帖文"
   },
   "title": {
     "federated_timeline": "跨站时间线",