GitPad 1.3.0

Open almost anything: images, PDFs and office documents get a read-only tab,
JSON and YAML format in place, and a pending GitHub login can be cancelled.

Added

• Read-only viewers for images, PDF, DOCX and ODT. PDF pages render as you
  scroll, memory stays bounded, and a page that fails no longer drops the
  document; office documents become a clean HTML preview.
• Format JSON and YAML with Prettier (Ctrl+Shift+I), comments included.
  Nothing is reformatted on save.
• Cancel a pending GitHub device-flow login, and respect the interval GitHub
  asks for between polls.

Fixed

• Links open reliably on desktops without xdg-open; when no opener works the
  link is copied instead of leaving the login screen stuck.
• Autosave retries every tab that failed, a push waits for another sync and
  retries instead of being lost, and the startup pull goes through the same
  guard.
• Moving the notes repository no longer reports a failure after the rename
  succeeded.
• A personal access token is stored before the account is shown as signed in.
• Binary previews are capped at 20 MB; search skips binary files and waits
  longer while typing.