new settings panel for url pickup

lib/objects/objects.dart

@@ -197,7 +197,7 @@ class LocoSummary extends Loco {
     this.livery,
     this.location,
     Map<String, dynamic>? extra,
-    bool powering = true,
+    super.powering = true,
   }) : extra = extra ?? const {},
        super(
          id: locoId,
@@ -207,7 +207,6 @@ class LocoSummary extends Loco {
          operator: locoOperator,
          notes: locoNotes,
          evn: locoEvn,
-         powering: powering,
        );
 
   factory LocoSummary.fromJson(Map<String, dynamic> json) => LocoSummary(
@@ -400,7 +399,7 @@ class LocoChange {
   });
 
   factory LocoChange.fromJson(Map<String, dynamic> json) {
-    String _clean(dynamic value) {
+    String cleanValue(dynamic value) {
       final str = value?.toString().trim() ?? '';
       if (str.isEmpty || str == '-' || str == '?') return '';
       return str;
@@ -417,15 +416,15 @@ class LocoChange {
     final validFromRaw = json['valid_from'] ?? json['validFrom'];
     return LocoChange(
       locoId: _asInt(json['loco_id']),
-      locoClass: _clean(json['loco_class']),
-      locoNumber: _clean(json['loco_number']),
-      locoName: _clean(json['loco_name']),
+      locoClass: cleanValue(json['loco_class']),
+      locoNumber: cleanValue(json['loco_number']),
+      locoName: cleanValue(json['loco_name']),
       attrCode: _asString(json['attr_code']),
-      attrDisplay: _clean(json['attr_display']),
-      valueDisplay: _clean(valueLabel),
+      attrDisplay: cleanValue(json['attr_display']),
+      valueDisplay: cleanValue(valueLabel),
       validFrom: DateTime.tryParse(validFromRaw?.toString() ?? ''),
       approvedAt: DateTime.tryParse(approvedRaw?.toString() ?? ''),
-      approvedBy: _clean(json['approved_by']),
+      approvedBy: cleanValue(json['approved_by']),
     );
   }