Color Picker dialog loaded from QWebEngineView are not translated in Spanish and Chinese on Windows

Description

On a Windows running in Spanish or Chinese, when you open a color picker ('Select Color') dialog from a QWebEngineView, the text appears in English and not in Spanish/Chinese.

Reproducibility

• This issue is reproducible with Qt 5.13.1 and Qt 5.14.0 on Windows 10 with the simplebrowser project when Windows is in Spanish or Chinese
• This issue is not reproducible with Qt 5.13.1 and Qt 5.14.0 on Windows 10 with the simplebrowser project when Windows is in French or German
• This issue is not reproducible with Qt 5.13.1 and Qt 5.14.0 on Windows 10 with the Quick Nano Browser project (XML) when Windows is in Spanish or Chinese
• This issue is not reproducible on macOS

Steps to reproduce

• Set a Windows 10 computer to use Spanish as language

• Open QtCreator with Qt 5.14.0 and create a new project based on the 'WebEngine Widgets Simple Browser'

• Compile and run the sample project
• Open the attached SimpleColor.html file in the 'WebEngine Widgets Simple Browser'

• Click on the color to display the 'Select Color' display

Result: The text in the color dialog appears in English and not in Spanish.

Expected Result: The text appears in Spanish. Note that the Quick Nano Browser project properly displays the text in Spanish.