[CE Port] Rename vue_component_helper to text_helper

What does this MR do?

CE Port of https://gitlab.com/gitlab-org/gitlab-ee/merge_requests/12778

Does this MR meet the acceptance criteria?

Conformity

• Documentation created/updated or follow-up review issue created
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content