This reduces chances of errors where consumers of strings mutate inputs
and reduces memory usage of the app.
Test suite passes now, but there may be some stuff left, so we will run
a few sites on a branch prior to merging
The webpush gem by default sets the expiration date of the JWT token to exactly 24 hours in the future. That's not really needed because the token isn't reused. And it might cause UnauthorizedRegistration if the server's clock isn't 100% correct, because the maximum allowed value is 24 hours.
* Feature: Push notifications for Android
Notification config for desktop and mobile are merged.
Desktop notifications stay as they are for desktop views.
If mobile mode, push notifications are enabled.
Added push notification subscriptions in their own table, rather than through
custom fields.
Notification banner prompts appear for both mobile and desktop when enabled.
