Hi, and thank you for your interest!
phpMyAdmin is being translated using Weblate, a web tool designed to ease translating for both developers and translators.
Translation project for phpMyAdmin into Estonian currently contains 8787 strings for translation and is 77.9% complete.
If you would like to contribute to translation of phpMyAdmin, you need to register on this server.
Once you have activated your account just proceed to the translation section.