fix(DApplication): wire up applicationHomePage in about dialog

CHANGELOG.md

@@ -5,6 +5,15 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Fixed
+
+- `DApplication::applicationHomePage` is now applied to the about dialog's
+  website link (previously a no-op dead API). It now fulfills its documented
+  purpose of being shown in the about dialog. When set, the website display
+  name shown in the about dialog is the same as the link.
+
 ## [6.7.48] - 2026-08-18
 
 ### Fixed

src/widgets/dapplication.cpp

@@ -1450,6 +1450,10 @@ void DApplication::handleAboutAction()
         aboutDialog->setAcknowledgementLink(applicationAcknowledgementPage());
     }
 #endif
+    if (!applicationHomePage().isEmpty()) {
+        aboutDialog->setWebsiteLink(applicationHomePage());
+        aboutDialog->setWebsiteName(applicationHomePage());
+    }
     aboutDialog->setAcknowledgementVisible(d->acknowledgementPageVisible);
     aboutDialog->setAttribute(Qt::WA_DeleteOnClose);