Release 3.0.0

Changelog

In this version, we have made the following changes:

1. 🐛 FIX!: We have fixed a memory leak bug that caused the app to freeze when editing PDF annotations.
   • Thanks vancleve and pencilheart for reporting this bug in issue #30 and issue #31 respectively.
2. ✨ NEW!: We have added the Non-duplicates functionality.
   • You can mark items as Non-duplicates when they are mistakenly identified as "duplicates" by Zotero.
   • Selecting two "false duplicates", you can find the They are NOT duplicates menu items in the context menu.
     • 
   • You can also find the They are NOT duplicates button in the Duplicate Items panel.
     • 
   • For more details, please see Non-duplicates section below.
   • Thanks dschaehi for the discussion in issue #25.