Engine settings UX update and basic functionality

Code/Tools/ProjectManager/Source/EngineSettingsScreen.h

@@ -15,13 +15,11 @@
 #include <ScreenWidget.h>
 #endif
 
-namespace Ui
-{
-    class EngineSettingsClass;
-}
-
 namespace O3DE::ProjectManager
 {
+    QT_FORWARD_DECLARE_CLASS(FormLineEditWidget)
+    QT_FORWARD_DECLARE_CLASS(FormBrowseEditWidget)
+
     class EngineSettingsScreen
         : public ScreenWidget
     {
@@ -30,8 +28,15 @@ namespace O3DE::ProjectManager
         ~EngineSettingsScreen() = default;
         ProjectManagerScreen GetScreenEnum() override;
 
+    protected slots:
+        void OnTextChanged();
+
     private:
-        QScopedPointer<Ui::EngineSettingsClass> m_ui;
+        FormLineEditWidget* m_engineVersion;
+        FormBrowseEditWidget* m_thirdParty;
+        FormBrowseEditWidget* m_defaultProjects;
+        FormBrowseEditWidget* m_defaultGems;
+        FormBrowseEditWidget* m_defaultProjectTemplates;
     };
 
 } // namespace O3DE::ProjectManager