TF-4370 Handle create new a label with description

labels/lib/extensions/label_extension.dart

@@ -11,6 +11,8 @@ extension LabelExtension on Label {
 
   String get safeDisplayName => displayName ?? '';
 
+  String get safeDescription => description ?? '';
+
   Color? get backgroundColor {
     if (id?.value == moreLabelId) {
       return AppColor.grayBackgroundColor;
@@ -32,12 +34,14 @@ extension LabelExtension on Label {
     KeyWordIdentifier? keyword,
     String? displayName,
     HexColor? color,
+    String? description,
   }) {
     return Label(
       id: id ?? this.id,
       displayName: displayName ?? this.displayName,
       keyword: keyword ?? this.keyword,
       color: color ?? this.color,
+      description: description ?? this.description,
     );
   }
 

lib/features/labels/data/network/label_api.dart

@@ -63,6 +63,7 @@ class LabelApi
       final newLabelCreated = labelCreated!.copyWith(
         displayName: labelData.displayName,
         color: labelData.color,
+        description: labelData.description,
       );
       return newLabelCreated;
     } else {

lib/features/labels/presentation/widgets/create_new_label_modal.dart

@@ -78,6 +78,7 @@ class _CreateNewLabelModalState extends State<CreateNewLabelModal> {
       if (selectedLabel != null) {
         _nameInputController.text = selectedLabel.safeDisplayName;
         _nameInputFocusNode.requestFocus();
+        _descriptionInputController.text = selectedLabel.safeDescription;
         _createLabelStateNotifier.value = true;
         _labelSelectedColorNotifier.value = _selectedColor;
       }
@@ -370,6 +371,7 @@ class _CreateNewLabelModalState extends State<CreateNewLabelModal> {
       color: _selectedColor != null
           ? HexColor(_selectedColor!.toHexTriplet())
           : null,
+      description: _descriptionInputController.text,
     );
     widget.onLabelActionCallback(newLabel);