Spell checking support

[LuckyTurtleDev]

Is your feature request related to a problem? Please describe.

I am writing documents with latex and would like to use automatic spell checking.

Describe the solution you'd like

Option to enable spellchecking, by using the system dictionary. Maybe by using a Lapce plugin.

[msrd0]

:+1: but please don't force download a bunch of dictionaries for those that don't want it like some other text editors do.

[panekj]

Closing as this should be provided as plugin