Save the database to the application cache folder

The documents folder is suggested for files that can't be generated by the
application itself

Author: rolandgeider

lib/database/exercises/exercise_database.dart

@@ -78,7 +78,7 @@ class ExerciseDatabase extends _$ExerciseDatabase {
 
 LazyDatabase _openConnection() {
   return LazyDatabase(() async {
-    final dbFolder = await getApplicationDocumentsDirectory();
+    final dbFolder = await getApplicationCacheDirectory();
     final file = File(p.join(dbFolder.path, 'exercises.sqlite'));
     return NativeDatabase.createInBackground(file);
   });

lib/database/ingredients/ingredients_database.dart

@@ -30,7 +30,7 @@ class IngredientDatabase extends _$IngredientDatabase {
 
 LazyDatabase _openConnection() {
   return LazyDatabase(() async {
-    final dbFolder = await getApplicationDocumentsDirectory();
+    final dbFolder = await getApplicationCacheDirectory();
     final file = File(p.join(dbFolder.path, 'ingredients.sqlite'));
     return NativeDatabase.createInBackground(file);
   });