feature/mtu connection config (#833)

* added the ability to change mtu for connection-only configs
* added replacing MTU with default when importing awg/wg configs in amnezia

client/ui/models/protocols/wireguardConfigModel.h

@@ -11,7 +11,7 @@ struct WgConfig
     WgConfig(const QJsonObject &jsonConfig);
 
     QString port;
-    QString mtu;
+    QString clientMtu;
 
     bool hasEqualServerSettings(const WgConfig &other) const;
     bool hasEqualClientSettings(const WgConfig &other) const;
@@ -25,7 +25,7 @@ class WireGuardConfigModel : public QAbstractListModel
 public:
     enum Roles {
         PortRole = Qt::UserRole + 1,
-        MtuRole
+        ClientMtuRole
     };
 
     explicit WireGuardConfigModel(QObject *parent = nullptr);
@@ -39,12 +39,15 @@ public slots:
     void updateModel(const QJsonObject &config);
     QJsonObject getConfig();
 
+    bool isServerSettingsEqual();
+
 protected:
     QHash<int, QByteArray> roleNames() const override;
 
 private:
     DockerContainer m_container;
-    QJsonObject m_protocolConfig;
+    QJsonObject m_serverProtocolConfig;
+    QJsonObject m_clientProtocolConfig;
     QJsonObject m_fullConfig;
 };