Dutch language support

Feature requests
#1

Use case or problem

I don’t have a dutch spell check option available yet.

Proposed solution

Adding dutch language support, I haven’t looked at how this could be achieved yet.

Current workaround (optional)

Could be an external app, currently i just live with it.

#2

Have the same issue.
However I saw the option to chose Flamish as a language, to spellcheck. Technically that should be almost the same as Dutch. But it is very comon to have spellcheck in Dutch available.
Would be great if Dutch spellchecking could be added.