login and begin listView

lib/models/filament_model.dart

@@ -53,16 +53,16 @@ class FilamentModel {
   // JSON Deserialisierung
   factory FilamentModel.fromJson(Map<String, dynamic> json) {
     return FilamentModel(
-      id: json['id'] as String,
-      name: json['name'] as String,
-      type: json['type'] as String,
-      color: json['color'] as String,
+      id: ( json['id'] as String).trim(),
+      name: (json['name'] as String).trim(),
+      type: (json['type'] as String).trim(),
+      color: (json['color'] as String).trim(),
       weight: json['weight'] as int? ?? 0,
       weightUsed: json['weightUsed'] as int? ?? 0,
       price: (json['price'] as num).toDouble(),
-      manufacturer: json['manufacturer'] as String?,
-      purchaseDate: json['purchaseDate'] as String?,
-      notes: json['notes'] as String?,
+      manufacturer: (json['manufacturer'] as String?)?.trim(),
+      purchaseDate: (json['purchaseDate'] as String?)?.trim(),
+      notes: (json['notes'] as String?)?.trim(),
       pices: json['pices'] as int,
       printingTemp: json['printingTemp'] as int,
       bedTemp: json['bedTemp'] as int,