Added list of translatable languages

src/main/java/es/yonatan/tfg/frontend/view/MainView.java

@@ -75,7 +75,9 @@ public class MainView extends JFrame {
 		label2.setAlignmentX(SwingConstants.LEADING);
 		panel2.add(label2);
 		panel2.add(Box.createVerticalStrut(5));
-		targetLang = new JComboBox<>(new String[]{"es", "en"});
+		targetLang = new JComboBox<>(new String[]{"es", "en-US", "en-GB", "bg", "cs", "da", "de", "el", "et", "fi",
+				"fr", "hu", "id", "it", "ja", "ko", "lt", "lv", "nb", "nl", "pl", "pt-PT", "pt-BR", "ro", "ru", "sk",
+				"sl", "sv", "tr", "uk", "zh"});
 		panel2.add(targetLang);
 
 		optionsPanel.add(panel2);