[Qt] make Out-Of-Sync warning icon clickable

src/qt/overviewpage.cpp

@@ -140,6 +140,8 @@ OverviewPage::OverviewPage(const PlatformStyle *platformStyle, QWidget *parent)
 
     // start with displaying the "out of sync" warnings
     showOutOfSyncWarning(true);
+    connect(ui->labelWalletStatus, SIGNAL(clicked()), this, SLOT(handleOutOfSyncWarningClicks()));
+    connect(ui->labelTransactionsStatus, SIGNAL(clicked()), this, SLOT(handleOutOfSyncWarningClicks()));
 }
 
 void OverviewPage::handleTransactionClicked(const QModelIndex &index)
@@ -148,6 +150,11 @@ void OverviewPage::handleTransactionClicked(const QModelIndex &index)
         Q_EMIT transactionClicked(filter->mapToSource(index));
 }
 
+void OverviewPage::handleOutOfSyncWarningClicks()
+{
+    Q_EMIT outOfSyncWarningClicked();
+}
+
 OverviewPage::~OverviewPage()
 {
     delete ui;