initial framework for additional screens

internal/app/app.go

@@ -20,7 +20,10 @@ type App struct {
 
 	help   *help.Help
 	assets *assets.Assets
-	menu   *tview.TextView
+	// shelves *shelves.Shelves
+	// categories *categories.Categories
+	// buildings *buildings.Buildings
+	menu *tview.TextView
 
 	currentPage string
 	needInitUI  bool
@@ -45,6 +48,9 @@ func NewApp(name, version, host string, logger *zap.Logger) *App {
 	menuItems := [][]string{
 		{utils.HelpScreenKey.Label(), app.help.GetTitle()},
 		{utils.AssetsScreenKey.Label(), app.assets.GetTitle()},
+		//{utils.ShelvesScreenKey.Label(), app.shelves.GetTitle()},
+		//{utils.CategoriesScreenKey.Label(), app.categories.GetTitle()},
+		//{utils.BuildingsScreenKey.Label(), app.buildings.GetTitle()},
 	}
 
 	app.menu = makeMenu(menuItems)