feat: update add product modal to reflect selection state with icons

lib/features/diary/presentation/widgets/add_product_modal.dart

@@ -132,7 +132,12 @@ class _AddProductModalState extends State<AddProductModal> {
                       subtitle: glossariesList[i].grInPortion == 0
                           ? null
                           : Text('${glossariesList[i].grInPortion} г', style: TextStyle(height: 1, color: Colors.grey.shade600)),
-                      trailing: Icon(Icons.add_rounded, color: Colors.grey.shade400),
+                      trailing: Icon(
+                        productNameController.text.trim().toLowerCase() == glossariesList[i].name.toLowerCase()
+                            ? Icons.radio_button_checked
+                            : Icons.radio_button_off,
+                        color: Colors.blueAccent,
+                      ),
                       contentPadding: const EdgeInsets.only(left: 12),
                     );
                   },
@@ -166,7 +171,9 @@ class _AddProductModalState extends State<AddProductModal> {
                   InkWell(
                     onTap: () {
                       // Автоматически выбираем первый элемент, если текст точно совпадает
-                      if (selectedGlossary == null && glossariesList.isNotEmpty && productNameController.text.trim().toLowerCase() == glossariesList[0].name.toLowerCase()) {
+                      if (selectedGlossary == null &&
+                          glossariesList.isNotEmpty &&
+                          productNameController.text.trim().toLowerCase() == glossariesList[0].name.toLowerCase()) {
                         selectedGlossary = glossariesList[0];
                       }