added config save

mainwindow.h

@@ -2,6 +2,7 @@
 #define MAINWINDOW_H
 
 #include <QMainWindow>
+#include <QJsonObject>
 
 QT_BEGIN_NAMESPACE
 namespace Ui { class MainWindow; }
@@ -40,6 +41,8 @@ private slots:
     void on_searchButton_clicked();
     void on_searchNextButton_clicked();
 
+    void on_deeplApiKey_editingFinished();
+
 private:
     struct TranslationItem {
         TranslationItem(int line_, QString character_, QString oldText_, QString newText_):
@@ -53,9 +56,10 @@ private:
         QString newText;
     };
     Ui::MainWindow *ui;
+    QJsonObject configuration;
+    bool noConfigChange{false};
     std::map<QString, QString> fileContentsMap;
     std::map<QString, std::vector<QString> > translationsMap;
-    const QString deeplAuthKey = "5f6bc5cc-1e5d-4c69-9ef0-eb3cc2c1ece5:fx";
     QString searchQuery;
     void crawlProject();
     void populateTreeWidgetFromMap();
@@ -72,5 +76,6 @@ private:
     void searchNext();
     void searchInTree(QTreeWidgetItem *item, const QString &query);
     QVector<TranslationItem> parseTextBlock(const QString &block);
+    void setConfigValue(const QString &key, const QString &value);
 };
 #endif // MAINWINDOW_H