[Move refactor] Move tabs to interface/widgets (#6235)

* Move tabs to interface/widgets.

---------

Co-authored-by: Lukas Brübach <Bruebach.Lukas@bdosecurity.de>

cockatrice/src/interface/widgets/tabs/tab_admin.h

@@ -0,0 +1,75 @@
+/**
+ * @file tab_admin.h
+ * @ingroup ServerTabs
+ * @brief TODO: Document this.
+ */
+
+#ifndef TAB_ADMIN_H
+#define TAB_ADMIN_H
+
+#include "tab.h"
+
+#include <QDialog>
+#include <libcockatrice/protocol/pb/commands.pb.h>
+#include <libcockatrice/protocol/pb/response.pb.h>
+
+class AbstractClient;
+
+class QGroupBox;
+class QPushButton;
+class QSpinBox;
+class QLineEdit;
+
+class ShutdownDialog : public QDialog
+{
+    Q_OBJECT
+private:
+    QLineEdit *reasonEdit;
+    QSpinBox *minutesEdit;
+
+public:
+    explicit ShutdownDialog(QWidget *parent = nullptr);
+    QString getReason() const;
+    int getMinutes() const;
+};
+
+class TabAdmin : public Tab
+{
+    Q_OBJECT
+private:
+    bool locked;
+    AbstractClient *client;
+    bool fullAdmin;
+    QPushButton *updateServerMessageButton, *shutdownServerButton, *reloadConfigButton, *grantReplayAccessButton,
+        *activateUserButton;
+    QGroupBox *adminGroupBox, *moderatorGroupBox;
+    QPushButton *unlockButton, *lockButton;
+    QLineEdit *replayIdToGrant, *userToActivate;
+signals:
+    void adminLockChanged(bool lock);
+private slots:
+    void actUpdateServerMessage();
+    void actShutdownServer();
+    void actReloadConfig();
+    void actGrantReplayAccess();
+    void actForceActivateUser();
+    void grantReplayAccessProcessResponse(const Response &response);
+    void activateUserProcessResponse(const Response &response);
+
+    void actUnlock();
+    void actLock();
+
+public:
+    TabAdmin(TabSupervisor *_tabSupervisor, AbstractClient *_client, bool _fullAdmin);
+    void retranslateUi() override;
+    QString getTabText() const override
+    {
+        return tr("Administration");
+    }
+    bool getLocked() const
+    {
+        return locked;
+    }
+};
+
+#endif