add detail page

lib/models/filament_model.dart

@@ -6,7 +6,7 @@ class FilamentModel {
   final double weight;
   final double weightUsed;
   final double price;
-  final String manufacture;
+  final String manufacturer;
   final String purchaseDate;
   final String? notes;
   final int printingTemp;
@@ -20,7 +20,7 @@ class FilamentModel {
     required this.weight,
     required this.weightUsed,
     required this.price,
-    required this.manufacture,
+    required this.manufacturer,
     required this.purchaseDate,
     this.notes,
     required this.printingTemp,
@@ -29,18 +29,18 @@ class FilamentModel {
 
   static FilamentModel fromJson(Map<String, dynamic> json) {
     return FilamentModel(
-      documentId: json['\$id'],
-      name: json['name'],
-      type: json['type'],
-      color: json['color'],
-      weight: (json['weight'] as num).toDouble(),
-      weightUsed: (json['weightUsed'] as num).toDouble(),
-      price: (json['price'] as num).toDouble(),
-      manufacture: json['manufacture'],
-      purchaseDate: json['purchaseDate'],
+      documentId: json['\$id'] as String? ?? '',
+      name: json['name'] as String? ?? '',
+      type: json['type'] as String? ?? '',
+      color: json['color'] as String? ?? '',
+      weight: (json['weight'] as num?)?.toDouble() ?? 0.0,
+      weightUsed: (json['weightUsed'] as num?)?.toDouble() ?? 0.0,
+      price: (json['price'] as num?)?.toDouble() ?? 0.0,
+      manufacturer: json['manufacturer'] as String? ?? '',
+      purchaseDate: json['purchaseDate'] as String? ?? '',
       notes: json['notes'] as String?,
-      printingTemp: json['printingTemp'],
-      bedTemp: json['bedTemp'],
+      printingTemp: (json['printingTemp'] as num?)?.toInt() ?? 0,
+      bedTemp: (json['bedTemp'] as num?)?.toInt() ?? 0,
     );
   }
 
@@ -52,7 +52,7 @@ class FilamentModel {
       'weight': filamentModel.weight,
       'weightUsed': filamentModel.weightUsed,
       'price': filamentModel.price,
-      'manufacture': filamentModel.manufacture,
+      'manufacturer': filamentModel.manufacturer,
       'purchaseDate': filamentModel.purchaseDate,
       if (filamentModel.notes != null) 'notes': filamentModel.notes,
       'printingTemp': filamentModel.printingTemp,
@@ -69,7 +69,7 @@ class FilamentModel {
     weight: 0.0,
     weightUsed: 0.0,
     price: 0.0,
-    manufacture: '',
+    manufacturer: '',
     purchaseDate: '',
     notes: null,
     printingTemp: 0,