QmlDesigner: Enable links in descriptions

Task-number: QDS-13773
Change-Id: Ie36dee2ab6c962487489d544cb596a389554641d
Reviewed-by: Knud Dollereder <knud.dollereder@qt.io>

share/qtcreator/qmldesigner/welcomepage/ThumbnailDelegate.qml

@@ -382,6 +382,7 @@ Item {
             Text {
                 id: recentProjectInfo
                 color: Constants.currentGlobalText
+                linkColor: Constants.currentBrand
                 text: typeof(description) === "undefined" ? "" : description
                 anchors.fill: parent
                 font.pixelSize: 12
@@ -390,6 +391,17 @@ Item {
                 wrapMode: Text.WordWrap
                 anchors.margins: Constants.thumbnailMargin
                 anchors.topMargin: 25
+
+                MouseArea {
+                    anchors.fill: parent
+                    acceptedButtons: Qt.NoButton
+                    cursorShape: recentProjectInfo.hoveredLink === "" ?  Qt.ArrowCursor : Qt.PointingHandCursor
+                }
+
+                Connections {
+                    target: recentProjectInfo
+                    onLinkActivated: (link)=>  Constants.projectModel.showLink(link)
+                }
             }
 
             TagArea {

src/plugins/studiowelcome/studiowelcomeplugin.cpp

@@ -273,6 +273,11 @@ public:
             QUrl("qthelp://org.qt-project.qtdesignstudio/doc/studio-getting-started.html"));
     }
 
+    Q_INVOKABLE void showLink(const QString &link)
+    {
+        QDesktopServices::openUrl(QUrl::fromUserInput(link));
+    }
+
     Q_INVOKABLE void openExample(const QString &examplePath,
                                  const QString &exampleName,
                                  const QString &formFile,