Reimplement onActivate in UsersViewStep for focus handling.

src/modules/users/UsersViewStep.cpp

@@ -94,6 +94,13 @@ UsersViewStep::jobs() const
 }
 
 
+void
+UsersViewStep::onActivate()
+{
+    m_widget->onActivate();
+}
+
+
 void
 UsersViewStep::onLeave()
 {

src/modules/users/UsersViewStep.h

@@ -53,6 +53,7 @@ public:
 
     QList< Calamares::job_ptr > jobs() const override;
 
+    void onActivate() override;
     void onLeave() override;
 
     void setConfigurationMap( const QVariantMap &configurationMap ) override;