show kcal consumed vs planned, on meal tiles

lib/widgets/nutrition/helpers.dart

@@ -19,6 +19,7 @@
 import 'package:flutter/cupertino.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_gen/gen_l10n/app_localizations.dart';
+import 'package:wger/models/nutrition/meal.dart';
 import 'package:wger/models/nutrition/nutritional_values.dart';
 import 'package:wger/widgets/core/core.dart';
 
@@ -49,3 +50,12 @@ String getShortNutritionValues(NutritionalValues values, BuildContext context) {
   final f = '${loc.fatShort} ${loc.gValue(values.fat.toStringAsFixed(0))}';
   return '$e / $p / $c / $f';
 }
+
+String getKcalConsumedVsPlanned(Meal meal, BuildContext context) {
+  final planned = meal.plannedNutritionalValues.energy;
+  final consumed =
+      meal.diaryEntriesToday.map((e) => e.nutritionalValues.energy).fold(0.0, (a, b) => a + b);
+  final loc = AppLocalizations.of(context);
+
+  return '${consumed.toStringAsFixed(0)} / ${planned.toStringAsFixed(0)} ${loc.kcal}';
+}

lib/widgets/nutrition/meal.dart

@@ -323,7 +323,7 @@ class MealHeader extends StatelessWidget {
                 ),
                 if (_meal.isRealMeal)
                   Text(
-                    getShortNutritionValues(_meal.plannedNutritionalValues, context),
+                    getKcalConsumedVsPlanned(_meal, context),
                     style: Theme.of(context).textTheme.titleSmall,
                   ),
               ],