Hide file types, execution environments, and teams from teachers

app/policies/execution_environment_policy.rb

@@ -1,4 +1,4 @@
-class ExecutionEnvironmentPolicy < AdminOrAuthorPolicy
+class ExecutionEnvironmentPolicy < AdminOnlyPolicy
   def author?
     @user == @record.author
   end

app/policies/file_type_policy.rb

@@ -1,4 +1,4 @@
-class FileTypePolicy < AdminOrAuthorPolicy
+class FileTypePolicy < AdminOnlyPolicy
   def author?
     @user == @record.author
   end

app/policies/team_policy.rb

@@ -1,6 +1,6 @@
 class TeamPolicy < ApplicationPolicy
   [:create?, :index?, :new?].each do |action|
-    define_method(action) { @user.internal_user? }
+    define_method(action) { admin? }
   end
 
   [:destroy?, :edit?, :show?, :update?].each do |action|