==Background
When anonymous users disable Page Previews, they see a second screen explaining that a link is added to the footer where they can re-enable.
This ticket adds the same for Reference previews and renames Page Preview's link.
==Requirements
[] After an anonymous user clicks on the cog wheel and then disables setting, users see the exact same graphic and message about re-enabling in the footer
[] A link is to re-enable reference previews is added to the footer, separate from page previews labeled "Enable reference previews"
[] Rename page preview re-enable link from "Enable previews" to "Enable page previews"
[] Match behavior of Page Previews flow: when clicking "Enable reference previews", the pop-up comes back with 'Disabled' selected and the user can change their setting. If they leave it at disable and click save again, do not show the graphic about the footer.
==Mocks
{F34165617}
Example both page previews and reference previews have been disabled by an anonymous user:
{F34165619}