feat: add styles

mainwindow.h

@@ -50,7 +50,6 @@ signals:
     void sigSendAutorization();
     bool sigGetConnected();
 
-
 private slots:
     void on_loginButton_clicked();
 
@@ -91,6 +90,7 @@ private:
     int filesLoaded;
 
     void debugLog(QString message);
+    void painting();
     void initialize();
     void updateProgress();
     void loadComplete();