Revert "Rename everything filcnaplo-related to refilc"

This reverts commit d1a9625d93.

filcnaplo/lib/models/subject_lesson_count.dart

@@ -0,0 +1,31 @@
+import 'package:filcnaplo_kreta_api/models/category.dart';
+import 'package:filcnaplo_kreta_api/models/subject.dart';
+
+enum SubjectLessonCountUpdateState { ready, updating }
+
+class SubjectLessonCount {
+  DateTime lastUpdated;
+  Map<Subject, int> subjects;
+  SubjectLessonCountUpdateState state;
+
+  SubjectLessonCount({required this.lastUpdated, required this.subjects, this.state = SubjectLessonCountUpdateState.ready});
+
+  factory SubjectLessonCount.fromMap(Map json) {
+    return SubjectLessonCount(
+      lastUpdated: DateTime.fromMillisecondsSinceEpoch(json["last_updated"] ?? 0),
+      subjects: ((json["subjects"] as Map?) ?? {}).map(
+        (key, value) => MapEntry(
+          Subject(id: key, name: "", category: Category.fromJson({})),
+          value,
+        ),
+      ),
+    );
+  }
+
+  Map toMap() {
+    return {
+      "last_updated": lastUpdated.millisecondsSinceEpoch,
+      "subjects": subjects.map((key, value) => MapEntry(key.id, value)),
+    };
+  }
+}