Fix `glm_content` value in the user dropdown

Summary

Due to this MR: !78872 (merged).

We add a helper method named trials_link_url. This caused the trials_link_url to be displayed incorrectly in the app/views/layouts/header/_current_user_dropdown.html.haml .

The glm_content should be top-right-dropdown, but we got gold-callout here.

What is the current bug behavior?

What is the expected correct behavior?

Possible fixes

Rename the trials_link_url method in ee/app/helpers/ee/users/callouts_helper.rb.