[native] Don't list sidebars under subthreads in ThreadSettings
[native] Don't list sidebars under subthreads in ThreadSettings

Summary: I'll display them in a separate category in the next diff.

Test Plan: I checked a thread that has sidebars and made sure the sidebars were no longer listed

Reviewers: palys-swm

Reviewed By: palys-swm

Subscribers: KatPo, zrebcu411, Adrian

Differential Revision: https://phabricator.ashoat.com/D259

Ashoat/squadcal,Ashoat/squadcal,Ashoat/squadcal,Ashoat/squadcal,Ashoat/squadcal,Ashoat/squadcal,Ashoat/squadcal