Resolve merge conflicts: README + ignore IDE files

lib/models/calendar_event_entry.dart

@@ -0,0 +1,22 @@
+class CalendarEventEntry {
+  const CalendarEventEntry({
+    required this.date,
+    required this.title,
+    required this.description,
+    required this.category,
+  });
+
+  final DateTime date;
+  final String title;
+  final String description;
+  final String category;
+
+  factory CalendarEventEntry.fromJson(Map<String, dynamic> json) {
+    return CalendarEventEntry(
+      date: DateTime.parse(json['date'].toString()),
+      title: json['title'].toString(),
+      description: json['description'].toString(),
+      category: json['category'].toString(),
+    );
+  }
+}