feature(training): Добавлен состояния загрузки, пустоты и наличие данных на экране тренировки

lib/gen/assets.gen.dart

@@ -410,6 +410,10 @@ class $AssetsImagesGen {
   /// File path: assets/images/quote.png
   AssetGenImage get quote => const AssetGenImage('assets/images/quote.png');
 
+  /// File path: assets/images/training_empty.png
+  AssetGenImage get trainingEmpty =>
+      const AssetGenImage('assets/images/training_empty.png');
+
   /// List of all assets
   List<dynamic> get values => [
     aGitkeep,
@@ -427,6 +431,7 @@ class $AssetsImagesGen {
     logo,
     noData,
     quote,
+    trainingEmpty,
   ];
 }