Changelog/CLI

• gravity list and --json output show the right first line for notes with old Mac line endings.
• gravity add and other changes work again on libraries the current Mac app has opened.
• gravity search --tag work wi-fi finds the same notes as gravity search "work: wi-fi".
• Tag searches only show notes that carry the tag.
• gravity import reads JSON backups from the current iPhone and Android apps.
• gravity edit --rescue also moves the note to the top of your list.
• gravity append --last adds to the note at the top of your list, the same note the Mac app's Append to last note opens.
• gravity search indexes a long backlog of notes in short steps, so the Mac app can keep saving while it runs.