[Update/Refactor] Main Window: Use translation feature ON/OFF時のwidget調整。

Translation Each Other表示は、翻訳機能使わない場合は必要のない情報なので、その時はSwap Language表示に固定。

locales/en.yml

@@ -6,7 +6,7 @@ main_window:
 
   language_settings: Language Settings
   your_language: Your Language
-  both_direction_desc: Translate Each Other
+  translate_each_other_label: Translate Each Other
   swap_button_label: Swap Languages
   target_language: Target Language
   translator: Translator