2.2.0 - Twin Pines🌲🌲

https://github.com/sugarcalendar/core/milestone/21?closed=1

This June 15th release is named after the mall in the movie Back to the Future, and includes the following improvements:

• Added: Event sequences
• Added: Advanced Recurring add-on support
• Improved: Performance of Calendar & Event collision detections
• Improved: Support for filtering some post type & taxonomy labels
• Fixed: Calendars taxonomy not appearing in Block Editor
• Fixed: Duplicate admin notices on some screens & actions
• Fixed: Typos in some strings