[FEATURE] LanguageTool integration

[pbek]

It would maybe be great to integrate GitHub - languagetool-org/languagetool: Style and Grammar Checker for 25+ Languages · GitHub as spelling backend in the app.
Best with a local instance of GitHub - Erikvl87/docker-languagetool: Dockerfile for LanguageTool server · GitHub, that the users would need to host themselves.

[Beurt]

I am VERY interested in this too (I did not post a feature request, because I was beyond the editor capabilities).

FYI: easier way to host LanguageTool server (without Docker): https://forums.linuxmint.com/viewtopic.php?t=384127

[pbek]

26.3.18

• Added optional LanguageTool grammar and style checking alongside the existing Sonnet
  spell checker, with colored editor underlines, context-menu suggestions, server settings,
  and a quick toggle in the Spelling menu (for #3496)
  • For more information on the LanguageTool integration, see the new documentation page at
    LanguageTool