Revert "Rename everything filcnaplo-related to refilc"

This reverts commit d1a9625d93.

filcnaplo_kreta_api/lib/models/subject.dart

@@ -0,0 +1,30 @@
+import 'category.dart';
+
+class Subject {
+  String id;
+  Category category;
+  String name;
+  String? renamedTo;
+
+  bool get isRenamed => renamedTo != null;
+
+  Subject({required this.id, required this.category, required this.name, this.renamedTo});
+
+  factory Subject.fromJson(Map json) {
+    final id = json["Uid"] ?? "";
+    return Subject(
+      id: id,
+      category: Category.fromJson(json["Kategoria"] ?? {}),
+      name: (json["Nev"] ?? "").trim(),
+    );
+  }
+
+  @override
+  bool operator ==(other) {
+    if (other is! Subject) return false;
+    return id == other.id;
+  }
+
+  @override
+  int get hashCode => id.hashCode;
+}