add some new features

lib/widgets/entry_panel.dart

@@ -75,11 +75,13 @@ class EntryNumberField extends StatelessWidget {
     required this.label,
     required this.unit,
     required this.validator,
+    this.onChanged,
   });
   final TextEditingController controller;
   final String label;
   final String unit;
   final FormFieldValidator<String> validator;
+  final ValueChanged<String>? onChanged;
 
   @override
   Widget build(BuildContext context) => TextFormField(
@@ -87,6 +89,7 @@ class EntryNumberField extends StatelessWidget {
     keyboardType: const TextInputType.numberWithOptions(decimal: true),
     decoration: InputDecoration(labelText: label, suffixText: unit),
     validator: validator,
+    onChanged: onChanged,
   );
 }
 
@@ -176,11 +179,13 @@ class SavedEntryCard extends StatelessWidget {
     required this.subtitle,
     required this.details,
     this.notes = '',
+    this.trailing,
   });
   final String title;
   final String subtitle;
   final List<String> details;
   final String notes;
+  final Widget? trailing;
 
   @override
   Widget build(BuildContext context) => Card(
@@ -194,9 +199,20 @@ class SavedEntryCard extends StatelessWidget {
       child: Column(
         crossAxisAlignment: CrossAxisAlignment.stretch,
         children: [
-          Text(
-            title,
-            style: const TextStyle(fontWeight: FontWeight.w700, fontSize: 18),
+          Row(
+            crossAxisAlignment: CrossAxisAlignment.start,
+            children: [
+              Expanded(
+                child: Text(
+                  title,
+                  style: const TextStyle(
+                    fontWeight: FontWeight.w700,
+                    fontSize: 18,
+                  ),
+                ),
+              ),
+              if (trailing != null) ...[const SizedBox(width: 8), trailing!],
+            ],
           ),
           const SizedBox(height: 6),
           Text(