add filter panel to calculator

lib/components/pages/traction/traction_page.dart

@@ -513,21 +513,10 @@ class _TractionPageState extends State<TractionPage> {
     if (widget.selectionMode) {
       return Scaffold(
         appBar: AppBar(
-          leadingWidth: 140,
-          leading: Padding(
-            padding: const EdgeInsets.only(left: 8.0),
-            child: TextButton.icon(
-              onPressed: () => Navigator.of(context).pop(),
-              icon: const Icon(Icons.arrow_back),
-              label: const Text('Back'),
-              style: TextButton.styleFrom(
-                padding: const EdgeInsets.symmetric(
-                  horizontal: 12,
-                  vertical: 10,
-                ),
-                foregroundColor: Theme.of(context).colorScheme.onSurface,
-              ),
-            ),
+          leadingWidth: 56,
+          leading: IconButton(
+            icon: const Icon(Icons.arrow_back),
+            onPressed: () => Navigator.of(context).pop(),
           ),
           title: null,
         ),