webui: fix language.json formatting

- fix #40

Signed-off-by: KOWX712 <leecc0503@gmail.com>

Author: KOWX712

webui/public/locales/languages.json

@@ -12,6 +12,6 @@
     "tr": "Türkçe",
     "uk": "Український",
     "zh-CN": "简体中文",
-    "zh-HK": "繁體中文（香港）"
+    "zh-HK": "繁體中文（香港）",
     "zh-TW": "繁體中文（台灣）"
-}
+}