public/scripts/extensions/translate/buttons.html

<div id="translate_chat" class="list-group-item flex-container flexGap5">
    <div class="fa-solid fa-language extensionsMenuExtensionButton"></div>
    <span data-i18n="ext_translate_btn_chat">Translate Chat</span>
</div>
<div id="translate_input_message" class="list-group-item flex-container flexGap5">
    <div class="fa-solid fa-keyboard extensionsMenuExtensionButton"></div>
    <span data-i18n="ext_translate_btn_input">Translate Input</span>
</div>