Quip for Desktop

What's new in this version:

Features:
- Checklists! Markdown-style checkboxes (- [ ] and - [x]) will now be rendered in the Editor as a clickable checkbox. Checklists can also be added from the Format ? Insert Checklist menu item

Enhancements:
- Change the button icon in the top left corner from a tag to a hamburger menu
- Improve accessibility of the tab panels in the Settings and Share dialogs
- Add a Tools panel (containing the Import/Export functions) to the Settings dialog
- Add ability to toggle checkboxes in the Markdown preview
- Show Published icon in Condensed view
- Add a “Check for Updates” menu item
- Improve alphabetical note sorting to ignore accents, diacritics, and leading # characters
- Improve contrast in Dark Mode

Fixes:
- Prevent the Search Bar from shrinking when there are no notes
- In narrow screen sizes, correctly close the note after a “Trash” or “Restore from Trash” command
- Make the text in the Markdown preview selectable
- Update the selected note when notes have reloaded
- Prevent Note List excerpts from being to short
- Fix an issue where a local change to a note’s content would reselect that note in the Editor, even when the user had already navigated away to a different note
- Fix lag when renaming tags
- Remove unnecessary left border in Focus Mode #1149 @qualitymanifest
- Prevent Markdown list prefixes from multiplying when hitting Return
- When copying a note, ensure that the raw text is copied to the clipboard instead of rich text
- Fix line break behavior in the Markdown preview to match common Markdown implementations, as well as the other Simplenote apps
- Fix CJK-related crashes after a tab character
- Various security and under-the-hood improvements