v1.8.3-beta.1

• Overdue section in agenda
• UI for end-time and delay/warning period
• Paste button in notebook for when it's empty
• Start new plain list item on enter press while editing content
• Fix issue of hidden notes when o.e is used
• Fix issue when pasting a large number of notes
• Fix subtree unfolding (long-click)
• Do not cancel sync on pull-to-sync
• Add labels and make buttons obvious in timestamp dialog
• Underline breadcrumb links
• Do not fold other notes on refile's go-to action