UI is not translated

Problem/Motivation

When my website is configured to use french, the "Find and replace" button appears in english. I expect it to rather show "Rechercher et remplacer".

Steps to reproduce

Choose french as default language in Drupal admin interface.
Ensure your node add form appears in french.
Add the Find and Replace button.
Go back to your node form and see that it's untranslated.

Proposed resolution

This might help? https://www.drupal.org/node/3264983 →