Use separate window for viewing logs

Signed-off-by: Yihe Li <winmikedows@hotmail.com>

launcher/ui/dialogs/ViewLogDialog.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#include <QDialog>
+#include <QHash>
+
+namespace Ui {
+class ViewLogDialog;
+}
+
+class OtherLogsPage;
+
+class ViewLogDialog : public QDialog {
+    Q_OBJECT
+
+   public:
+    explicit ViewLogDialog(QWidget* parent = nullptr);
+    ~ViewLogDialog();
+
+   private:
+    Ui::ViewLogDialog* ui;
+    OtherLogsPage* m_page;
+};