Sort Order Preference Not Respected In Web App

If you set your sort order preference to be alphabetical, when you log out and log back into the web app, it won't keep your preference set. This happens in Firefox only.

### Expected
If I set my notes to display alphabetical, that the sort order in the settings, stays.

### Observed
Using FF, if you set the sort order to alphabetical instead of last updated, it will not keep the setting once you log out and then log back in.

### Reproduced
1. In Firefox, open Simplenote.
2. Under settings, set your sort order to alphabetical.
3. See the sort order change.
4. Log out of Simplenote. Close the browser.
5. Open Firefox again, and log into Simplenote.
6. Notice the sort order is back to last updated instead of alphabetical.

Reproduced on Firefox 68.0.2

Start by reproducing the preference persistence steps in Firefox 68.0.2, then trace where the web app saves and restores the sort order across logout and login. Done means an alphabetical sort preference remains alphabetical after closing Firefox, reopening it, and signing back in.

Written by the indexing model from the issue text.