Translate 'Search' page & fix locale discrepancy

locales/zh-CN.json

@@ -310,6 +310,7 @@
     "`x` seconds": "`x` 秒",
     "Fallback comments: ": "后备评论: ",
     "Popular": "热门频道",
+    "Search": "",
     "Top": "热门视频",
     "About": "关于",
     "Rating: ": "评分: ",
@@ -333,4 +334,4 @@
     "Playlists": "播放列表",
     "Community": "社区",
     "Current version: ": "当前版本: "
-}
+}