fix: 修改AM重启后，任务栏上图标变成默认程序的问题

调整ServiceRestarted发送位置，使其正常发送到DBus上

Log:
Task: https://pms.uniontech.com/task-view-150375.html
Influence: AM重启后，任务栏正常显示
Change-Id: I026c52c716ed950bf175b428a0bfc6e93ba5ce38

src/modules/dock/dock.cpp

@@ -87,8 +87,6 @@ Dock::Dock(QObject *parent)
         connect(x11Manager, &X11Manager::requestHandleActiveWindowChange, this, &Dock::handleActiveWindowChanged);
         connect(x11Manager, &X11Manager::requestAttachOrDetachWindow, this, &Dock::attachOrDetachWindow);
     }
-
-    Q_EMIT serviceRestarted();
 }
 
 Dock::~Dock()

src/modules/dock/dockmanager.cpp

@@ -38,8 +38,11 @@ DockManager::DockManager(QObject *parent)
         return;
     }
 
-    if (!con.registerObject(dbusPath, dock, QDBusConnection::ExportAdaptors))
+    if (!con.registerObject(dbusPath, dock, QDBusConnection::ExportAdaptors)) {
         qWarning() << "register object Dock1 error:" << con.lastError().message();
+    }
+
+    dock->serviceRestarted();
 }
 
 DockManager::~DockManager()

src/modules/dock/entry.cpp

@@ -652,7 +652,7 @@ void Entry::active(uint32_t timestamp)
                 dock->doActiveWindow(xid);
             } else if (windowInfoMap.size() == 1) {
                 XCB->minimizeWindow(xid);
-            } else if (dock->getActiveWindow()->getXid() == xid) {
+            } else if (dock->getActiveWindow() && dock->getActiveWindow()->getXid() == xid) {
                 WindowInfoBase *nextWin = findNextLeader();
                 if (nextWin) {
                     nextWin->activate();