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/equipment_detail_page.dart

@@ -7,7 +7,6 @@ import 'package:em2rp/providers/local_user_provider.dart';
 import 'package:em2rp/services/equipment_service.dart';
 import 'package:em2rp/services/qr_code_service.dart';
 import 'package:em2rp/utils/colors.dart';
-import 'package:em2rp/utils/permission_gate.dart';
 import 'package:em2rp/views/widgets/nav/custom_app_bar.dart';
 import 'package:em2rp/views/equipment_form_page.dart';
 import 'package:em2rp/views/widgets/equipment/equipment_parent_containers.dart';
@@ -144,10 +143,9 @@ class _EquipmentDetailPageState extends State<EquipmentDetailPage> {
               CircleAvatar(
                 backgroundColor: Colors.white,
                 radius: 30,
-                child: Icon(
-                  _getCategoryIcon(widget.equipment.category),
-                  color: AppColors.rouge,
+                child: widget.equipment.category.getIcon(
                   size: 32,
+                  color: AppColors.rouge,
                 ),
               ),
               const SizedBox(width: 16),
@@ -187,7 +185,7 @@ class _EquipmentDetailPageState extends State<EquipmentDetailPage> {
   }
 
   Widget _buildStatusBadge() {
-    final statusInfo = _getStatusInfo(widget.equipment.status);
+    final status = widget.equipment.status;
     return Container(
       padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 6),
       decoration: BoxDecoration(
@@ -201,17 +199,17 @@ class _EquipmentDetailPageState extends State<EquipmentDetailPage> {
             width: 8,
             height: 8,
             decoration: BoxDecoration(
-              color: statusInfo.$2,
+              color: status.color,
               shape: BoxShape.circle,
             ),
           ),
           const SizedBox(width: 8),
           Text(
-            statusInfo.$1,
+            status.label,
             style: TextStyle(
               fontSize: 14,
               fontWeight: FontWeight.bold,
-              color: statusInfo.$2,
+              color: status.color,
             ),
           ),
         ],
@@ -240,14 +238,14 @@ class _EquipmentDetailPageState extends State<EquipmentDetailPage> {
               ],
             ),
             const Divider(height: 24),
-            _buildInfoRow('Catégorie', _getCategoryName(widget.equipment.category)),
+            _buildInfoRow('Catégorie', widget.equipment.category.label),
             if (widget.equipment.brand != null && widget.equipment.brand!.isNotEmpty)
               _buildInfoRow('Marque', widget.equipment.brand!),
             if (widget.equipment.model != null && widget.equipment.model!.isNotEmpty)
               _buildInfoRow('Modèle', widget.equipment.model!),
             if (widget.equipment.category != EquipmentCategory.consumable &&
                 widget.equipment.category != EquipmentCategory.cable)
-              _buildInfoRow('Statut', _getStatusInfo(widget.equipment.status).$1),
+              _buildInfoRow('Statut', widget.equipment.status.label),
           ],
         ),
       ),
@@ -808,65 +806,6 @@ class _EquipmentDetailPageState extends State<EquipmentDetailPage> {
     );
   }
 
-  IconData _getCategoryIcon(EquipmentCategory category) {
-    switch (category) {
-      case EquipmentCategory.lighting:
-        return Icons.light_mode;
-      case EquipmentCategory.sound:
-        return Icons.volume_up;
-      case EquipmentCategory.video:
-        return Icons.videocam;
-      case EquipmentCategory.effect:
-        return Icons.auto_awesome;
-      case EquipmentCategory.structure:
-        return Icons.construction;
-      case EquipmentCategory.consumable:
-        return Icons.inventory_2;
-      case EquipmentCategory.cable:
-        return Icons.cable;
-      case EquipmentCategory.other:
-        return Icons.more_horiz;
-    }
-  }
-
-  String _getCategoryName(EquipmentCategory category) {
-    switch (category) {
-      case EquipmentCategory.lighting:
-        return 'Lumière';
-      case EquipmentCategory.sound:
-        return 'Son';
-      case EquipmentCategory.video:
-        return 'Vidéo';
-      case EquipmentCategory.effect:
-        return 'Effets';
-      case EquipmentCategory.structure:
-        return 'Structure';
-      case EquipmentCategory.consumable:
-        return 'Consommable';
-      case EquipmentCategory.cable:
-        return 'Câble';
-      case EquipmentCategory.other:
-        return 'Autre';
-    }
-  }
-
-  (String, Color) _getStatusInfo(EquipmentStatus status) {
-    switch (status) {
-      case EquipmentStatus.available:
-        return ('Disponible', Colors.green);
-      case EquipmentStatus.inUse:
-        return ('En prestation', Colors.blue);
-      case EquipmentStatus.rented:
-        return ('Loué', Colors.orange);
-      case EquipmentStatus.lost:
-        return ('Perdu', Colors.red);
-      case EquipmentStatus.outOfService:
-        return ('HS', Colors.red[900]!);
-      case EquipmentStatus.maintenance:
-        return ('Maintenance', Colors.amber);
-    }
-  }
-
   (String, IconData) _getMaintenanceTypeInfo(MaintenanceType type) {
     switch (type) {
       case MaintenanceType.preventive: