fix(home): Оптимизация работы навигационного бара

lib/screens/home/home_screen.dart

@@ -21,7 +21,9 @@ class HomeScreen extends StatelessWidget {
   Widget build(BuildContext context) {
     logger.logBuild('build home screen');
 
-    return SafeArea(
+    return Stack(
+      children: [
+        SafeArea(
           top: false,
           child: AutoTabsScaffold(
             routes: <PageRouteInfo>[
@@ -31,21 +33,12 @@ class HomeScreen extends StatelessWidget {
               CollectionRoute(),
             ],
             bottomNavigationBuilder: (_, TabsRouter tabsRouter) {
-          return ColoredBox(
+              return _buildBackgroundBar(tabsRouter);
-            color: AppColors.bg,
-            child: SizedBox(
-              height: 73.h,
-              child: Stack(
-                alignment: Alignment.bottomCenter,
-                children: <Widget>[
-                  _buildBackgroundBar(tabsRouter),
-                  _buildCentralButton(),
-                ],
-              ),
-            ),
-          );
             },
           ),
+        ),
+        _buildCentralButton(),
+      ],
     );
   }
 
@@ -89,7 +82,7 @@ class HomeScreen extends StatelessWidget {
   /// Построение центральной кнопки
   Widget _buildCentralButton() {
     return Align(
-      alignment: Alignment.topCenter,
+      alignment: Alignment(0, 0.91),
       child: GestureDetector(
         onTap: () {
           // Логика нажатия на центральную кнопку