feat: add speech_to_text, optimize navigation transitions, improve bottom nav rebuild performance, and fix home screen padding.

lib/features/home/presentation/screens/home_screen.dart

@@ -38,6 +38,7 @@ class HomeScreen extends ConsumerWidget {
     ];
     return ListView.builder(
       controller: scrollController,
+      padding: EdgeInsets.zero,
       itemCount: sections.length,
       itemBuilder: (_, i) => sections[i],
     );