Update Simplenote to 1.1.3

Summary:
Changelog:

• To save on editor space, the markdown Edit/Preview toggle has been moved to the toolbar.
• The app checks for any unsynced notes before logging out and warns if it finds any.
• Security fixes.

Test Plan: Tested signing into the new version and creating a note.

Reviewers: Triage Team, joebonrichie

Reviewed By: joebonrichie

Differential Revision: https://dev.solus-project.com/D2332