correct opt-out showing application (#10086)

* correct opt-out showing application

refs #9994

* Revert "correct opt-out showing application"

This reverts commit 0e9bb70f145be42962416a6b87c08d59a2896486.

* User#shows_application? calls wrong value

app/models/user.rb

@@ -245,7 +245,7 @@ class User < ApplicationRecord
   end
 
   def shows_application?
-    @shows_application ||= settings.shows_application
+    @shows_application ||= settings.show_application
   end
 
   def token_for_app(a)