Refactor: Centralisation des labels et icônes pour les enums

Centralise la gestion des libellés, couleurs et icônes pour `EquipmentStatus`, `EquipmentCategory`, et `ContainerType` en utilisant des extensions Dart.

- Ajout de nouvelles icônes SVG pour `flight-case`, `truss` et `tape`.
- Refactorisation des vues pour utiliser les nouvelles extensions, supprimant ainsi la logique d'affichage dupliquée.
- Mise à jour des `ChoiceChip` et des listes de filtres pour afficher les icônes à côté des labels.

em2rp/lib/views/container_management_page.dart

@@ -190,7 +190,7 @@ class _ContainerManagementPageState extends State<ContainerManagementPage>
             ...ContainerType.values.map((type) {
               return Padding(
                 padding: const EdgeInsets.only(right: 8),
-                child: _buildTypeChip(type, containerTypeLabel(type)),
+                child: _buildTypeChip(type, type.label),
               );
             }),
           ],
@@ -201,8 +201,19 @@ class _ContainerManagementPageState extends State<ContainerManagementPage>
 
   Widget _buildTypeChip(ContainerType? type, String label) {
     final isSelected = _selectedType == type;
+    final color = isSelected ? Colors.white : AppColors.noir;
+
     return ChoiceChip(
-      label: Text(label),
+      label: Row(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          if (type != null) ...[
+            type.getIcon(size: 16, color: color),
+            const SizedBox(width: 8),
+          ],
+          Text(label),
+        ],
+      ),
       selected: isSelected,
       onSelected: (selected) {
         setState(() {
@@ -212,7 +223,7 @@ class _ContainerManagementPageState extends State<ContainerManagementPage>
       },
       selectedColor: AppColors.rouge,
       labelStyle: TextStyle(
-        color: isSelected ? Colors.white : AppColors.noir,
+        color: color,
         fontWeight: isSelected ? FontWeight.bold : FontWeight.normal,
       ),
     );
@@ -244,7 +255,7 @@ class _ContainerManagementPageState extends State<ContainerManagementPage>
           const SizedBox(height: 8),
           _buildFilterOption(null, 'Tous les types'),
           ...ContainerType.values.map((type) {
-            return _buildFilterOption(type, containerTypeLabel(type));
+            return _buildFilterOption(type, type.label);
           }),
 
           const Divider(height: 32),
@@ -403,8 +414,7 @@ class _ContainerManagementPageState extends State<ContainerManagementPage>
                 ),
 
               // Icône du type de container
-              Icon(
-                _getTypeIcon(container.type),
+              container.type.getIcon(
                 size: 40,
                 color: AppColors.rouge,
               ),
@@ -434,7 +444,7 @@ class _ContainerManagementPageState extends State<ContainerManagementPage>
                     Row(
                       children: [
                         _buildInfoChip(
-                          containerTypeLabel(container.type),
+                          container.type.label,
                           Icons.category,
                         ),
                         const SizedBox(width: 8),
@@ -534,42 +544,17 @@ class _ContainerManagementPageState extends State<ContainerManagementPage>
   }
 
   Widget _buildStatusBadge(EquipmentStatus status) {
-    Color color;
-    String label;
-
-    switch (status) {
-      case EquipmentStatus.available:
-        color = Colors.green;
-        label = 'Disponible';
-        break;
-      case EquipmentStatus.inUse:
-        color = Colors.orange;
-        label = 'En prestation';
-        break;
-      case EquipmentStatus.maintenance:
-        color = Colors.blue;
-        label = 'Maintenance';
-        break;
-      case EquipmentStatus.outOfService:
-        color = Colors.red;
-        label = 'Hors service';
-        break;
-      default:
-        color = Colors.grey;
-        label = 'Autre';
-    }
-
     return Container(
       padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
       decoration: BoxDecoration(
-        color: color.withOpacity(0.1),
+        color: status.color.withOpacity(0.1),
         borderRadius: BorderRadius.circular(16),
-        border: Border.all(color: color),
+        border: Border.all(color: status.color),
       ),
       child: Text(
-        label,
+        status.label,
         style: TextStyle(
-          color: color,
+          color: status.color,
           fontWeight: FontWeight.bold,
           fontSize: 12,
         ),
@@ -577,21 +562,6 @@ class _ContainerManagementPageState extends State<ContainerManagementPage>
     );
   }
 
-  IconData _getTypeIcon(ContainerType type) {
-    switch (type) {
-      case ContainerType.flightCase:
-        return Icons.work;
-      case ContainerType.pelicase:
-        return Icons.work_outline;
-      case ContainerType.bag:
-        return Icons.shopping_bag;
-      case ContainerType.openCrate:
-        return Icons.inventory_2;
-      case ContainerType.toolbox:
-        return Icons.handyman;
-    }
-  }
-
 
   void _handleMenuAction(String action, ContainerModel container) {
     switch (action) {