QHelpSearchResultWidget is not translated properly into Chinese

Took the following .qm files, loaded and installed them at runtime:

• qtbase_zh_CN.qm
• qt_help_zh_CN.qm

The following is a custom help viewer that uses QHelpEngine and corresponding widgets with untranslated text:

I pulled the qt_help_zh_CN.ts file from the Qt code base and updated translations (see attached qt_help_zh_CN.ts file, this is my modified version) before compiling a new qt_help_zh_CN.qm file and was able to get the "Your search did not match any documents." to be translated properly but the navigation bar text is still untranslated:

Not sure what to do at this point, I checked the code base (here) and the context should be `QHelpSearchResultWidget` but it's not working, any help would be appreciated!