[clients/aurorae] Change some connects to new syntax

clients/aurorae/src/decorationoptions.cpp

@@ -25,9 +25,9 @@ DecorationOptions::DecorationOptions(QObject *parent)
     , m_active(true)
     , m_decoration(nullptr)
 {
-    connect(this, SIGNAL(decorationChanged()), SLOT(slotActiveChanged()));
-    connect(this, SIGNAL(decorationChanged()), SIGNAL(colorsChanged()));
-    connect(this, SIGNAL(decorationChanged()), SIGNAL(fontChanged()));
+    connect(this, &DecorationOptions::decorationChanged, this, &DecorationOptions::slotActiveChanged);
+    connect(this, &DecorationOptions::decorationChanged, this, &DecorationOptions::colorsChanged);
+    connect(this, &DecorationOptions::decorationChanged, this, &DecorationOptions::fontChanged);
 }
 
 DecorationOptions::~DecorationOptions()