Add support for Mark-of-the-Web

https://redcanary.com/threat-detection-report/techniques/mark-of-the-web-bypass/
https://mikehadlow.blogspot.com/2011/07/detecting-and-changing-files-internet.html
https://textslashplain.com/2016/04/04/downloads-and-the-mark-of-the-web/

Closes #19648.
PR #19675.

src/base/utils/misc.h

@@ -94,6 +94,7 @@ namespace Utils::Misc
     QString languageToLocalizedString(const QString &localeStr);
 
 #ifdef Q_OS_WIN
+    bool applyMarkOfTheWeb(const Path &file, const QString &url = {});
     Path windowsSystemPath();
 
     template <typename T>