[web] Move onSubmit up from ThreadSettingsModal to ConnectedThreadSettingsModal
Summary:
Move onSubmit out from inner class component to outer "Connected" functional component.
As part of the work to refactor ThreadSettingsModal... specifically to turn it into a functional component (any day now...)
Depends on D3795
Test Plan:
- Open ThreadSettingsModal
- Mess with the settings
- Hit save and make sure things continue to look/work as expected
Reviewers: palys-swm, def-au1t
Reviewed By: palys-swm
Subscribers: ashoat, Adrian, karol-bisztyga, benschac, yayabosh
Differential Revision: https://phabricator.ashoat.com/D3796