Remove duplicate terms

Problem/Motivation

When adding in multiple Glossary terms that share a similar word (i.e. "Agency" and "Agency Director"), the shorter term/first match was being appended on, resulting in "Agency Director Agency", with both "Agency Director" and "Agency" each receiving the proper tooltip but "Agency" not being expected.

Steps to reproduce

1. Add a glossary
2. Add two glossary terms that share a word - "Agency" and "Agency Director"
3. Add a new page with your glossary, and the term "Agency Director" in the text
4. Observe that it now reads "Agency Director Agency"

Proposed resolution

Update the script to find the first match and move on from there, so it doesn't duplicate.