rename client header files

client/led.hpp

@@ -0,0 +1,20 @@
+#ifndef LED_H
+#define LED_H
+
+#include "QPushButton"
+
+class Led : public QPushButton
+{
+    Q_OBJECT
+  public:
+    explicit Led(QWidget *parent = nullptr);
+    explicit Led(const QString &text, QWidget *parent = nullptr);
+    Led(const QIcon &icon, const QString &text, QWidget *parent = nullptr);
+    ~Led();
+
+  private:
+    bool is_read_only(QWidget *widget);
+    void set_read_only(QWidget *widget, bool read_only);
+};
+
+#endif // LED_H