Update Translation

Author: fricyo

app/src/main/res/values-zh-rTW/strings.xml

@@ -7,7 +7,7 @@
     <string name="go_to_home_folder">前往主資料夾</string>
     <string name="set_as_home_folder">設為主資料夾</string>
     <string name="home_folder_updated">主資料夾已更新</string>
-    <string name="open_as_text">Open as Plain Text</string>
+    <string name="open_as_text">開啟為純文字</string>
     <string name="copy_path">路徑複製到剪貼簿</string>
     <string name="path_copied">路徑已複製</string>
     <string name="select_audio_file">請選擇一個音訊檔案</string>