Add Features Glossary for YOOtheme Pro Essentials organized by addon (#170)

* Initial plan

* Add comprehensive Features Glossary for YOOtheme Pro

Co-authored-by: miljan-aleksic <513275+miljan-aleksic@users.noreply.github.com>

* Reorganize Features Glossary by addon instead of alphabetically

Co-authored-by: miljan-aleksic <513275+miljan-aleksic@users.noreply.github.com>

* update

* cleanup

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Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: miljan-aleksic <513275+miljan-aleksic@users.noreply.github.com>
Co-authored-by: Miljan <noreply.mn@aleksic.es>

Author: Copilot