Native exporting to Switch doesn't exist so far. For the Click created games that you do see on the Switch store, they were ported by other game companies.
If you want to release a game on Switch, you would need a SDK tools. As far as I know, Nintendo will not sell you such a sdk development station.
Certainly not for an individual one person, but a serious game publisher.
Besides, it's not an easy way to just port it to c++ and this will certainly involve high payments. If I were you, I'd choose my publisher carefully. As far as I know, there are several companies in my country that port games to Switch however, I don't know if they port games from based on HTML5. I'm sure I'll ask about that sometime. I also spoke to Ratalik's game publisher, but I have some doubts if they can port games with good performance from click engines.