Update Japanese translation

locales/ja.json

@@ -59,7 +59,7 @@
     "preferences_continue_label": "次の動画を再生をオン: ",
     "preferences_continue_autoplay_label": "次の動画を自動再生: ",
     "preferences_listen_label": "音声モードを使用: ",
-    "preferences_local_label": "動画視聴にプロキシーを経由: ",
+    "preferences_local_label": "動画視聴にプロキシを経由: ",
     "preferences_speed_label": "再生速度の初期値: ",
     "preferences_quality_label": "優先する画質: ",
     "preferences_volume_label": "プレイヤーの音量: ",
@@ -403,7 +403,7 @@
     "none": "なし",
     "download_subtitles": "字幕 - `x` (.vtt)",
     "search_filters_features_option_purchased": "購入済み",
-    "preferences_quality_option_dash": "DASH (適応品質)",
+    "preferences_quality_option_dash": "DASH (適応的画質)",
     "preferences_quality_dash_option_worst": "最悪",
     "preferences_quality_dash_option_best": "最高",
     "videoinfo_started_streaming_x_ago": "`x`前に配信を開始",