Revert "Rename everything filcnaplo-related to refilc"

This reverts commit d1a9625d93.

filcnaplo/lib/ui/date_widget.dart

@@ -0,0 +1,8 @@
+import 'package:flutter/widgets.dart';
+
+class DateWidget {
+  final DateTime date;
+  final Widget widget;
+  final String? key;
+  const DateWidget({required this.date, required this.widget, this.key});
+}