Slightly improve translating mining tab when lang changes. Currently it only works once for some reason

src/mainwindow.cpp

@@ -155,16 +155,43 @@ void MainWindow::retranslateMiningTab() {
         return;
     }
 
-    auto button1 = tab->findChild<QPushButton *>("stopmining");
+    auto button1 = tab->template findChild<QPushButton *>("stopmining");
     if(button1 != nullptr) {
-        DEBUG("found stop mining button");
+        DEBUG("found stop mining button " << button1->objectName());
         button1->setText( QObject::tr("Stop Mining") );
     }
 
-    auto button2 = tab->findChild<QPushButton *>("startmining");
+    auto button2 = tab->template findChild<QPushButton *>("startmining");
     if(button2 != nullptr) {
-        DEBUG("found start mining button");
+        DEBUG("found start mining button " << button2->objectName());
         button2->setText( QObject::tr("Start Mining") );
+        button2->setObjectName("startmining");
+    }
+
+    auto label2 = tab->findChild<QLabel *>("mininglabel2");
+    if(label2 != nullptr) {
+        DEBUG("found mininglabel2");
+        label2->setText( QObject::tr("Mining threads") );
+    }
+    auto label3 = tab->findChild<QLabel *>("mininglabel3");
+    if(label3 != nullptr) {
+        label3->setText( QObject::tr("Local Hashrate (hashes/sec)") );
+    }
+    auto label4 = tab->findChild<QLabel *>("mininglabel4");
+    if(label4 != nullptr) {
+        label4->setText( QObject::tr("Network Hashrate (hashes/sec)") );
+    }
+    auto label5 = tab->findChild<QLabel *>("mininglabel5");
+    if(label5 != nullptr) {
+        label5->setText( QObject::tr("Difficulty") );
+    }
+    auto label6 = tab->findChild<QLabel *>("mininglabel6");
+    if(label6 != nullptr) {
+        label6->setText( QObject::tr("Estimated Hours To Find A Block") );
+    }
+    auto label7 = tab->findChild<QLabel *>("mininglabel7");
+    if(label7 != nullptr) {
+        label7->setText( QObject::tr("Select the number of threads to mine with:") );
     }
 
     auto combo = tab->findChild<QComboBox *>("genproclimit");
@@ -1525,6 +1552,13 @@ void MainWindow::setupMiningTab() {
         auto label5     = new QLabel(tr("Difficulty"), tab);
         auto label6     = new QLabel(tr("Estimated Hours To Find A Block"), tab);
         auto label7     = new QLabel(tr("Select the number of threads to mine with:"), tab);
+        label2->setObjectName("mininglabel2");
+        label3->setObjectName("mininglabel3");
+        label4->setObjectName("mininglabel4");
+        label5->setObjectName("mininglabel5");
+        label6->setObjectName("mininglabel6");
+        label7->setObjectName("mininglabel7");
+
         auto combo      = new QComboBox(tab);
         combo->setObjectName("genproclimit");