Issue #261: About translation to Korean

Pdf4QtDiff/aboutdialog.ui

@@ -36,7 +36,7 @@
       <bool>true</bool>
      </property>
      <property name="html">
-      <string>&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
+      <string notr="true">&lt;!DOCTYPE HTML PUBLIC &quot;-//W3C//DTD HTML 4.0//EN&quot; &quot;http://www.w3.org/TR/REC-html40/strict.dtd&quot;&gt;
 &lt;html&gt;&lt;head&gt;&lt;meta name=&quot;qrichtext&quot; content=&quot;1&quot; /&gt;&lt;meta charset=&quot;utf-8&quot; /&gt;&lt;style type=&quot;text/css&quot;&gt;
 p, li { white-space: pre-wrap; }
 hr { height: 1px; border-width: 0; }
@@ -225,10 +225,10 @@ li.checked::marker { content: &quot;\2612&quot;; }
    <item>
     <widget class="QDialogButtonBox" name="buttonBox">
      <property name="orientation">
-      <enum>Qt::Horizontal</enum>
+      <enum>Qt::Orientation::Horizontal</enum>
      </property>
      <property name="standardButtons">
-      <set>QDialogButtonBox::Ok</set>
+      <set>QDialogButtonBox::StandardButton::Ok</set>
      </property>
     </widget>
    </item>

Pdf4QtDiff/main.cpp

@@ -18,6 +18,7 @@
 #include "pdfconstants.h"
 #include "pdfdocumentreader.h"
 #include "pdfsecurityhandler.h"
+#include "pdfapplicationtranslator.h"
 #include "mainwindow.h"
 
 #include <QApplication>
@@ -49,6 +50,9 @@ int main(int argc, char *argv[])
         pdf::PDFSecurityHandler::setNoDRMMode();
     }
 
+    pdf::PDFApplicationTranslator translator;
+    translator.installTranslator();
+
     QIcon appIcon(":/app-icon.svg");
     QApplication::setWindowIcon(appIcon);