Translate Acc Login form labels

I’m using the Acc Login Form – Divi Machine, and need to translate the form labels and the ‘remeber me’ and ‘lost password?’ texts.

I could of course add a language plugin (e.g. WPML or Polylang) or a translation plugin, but for single language sites, it would be nice to avoid extra plugins for translating 4 short texts.

Have been looking for some language files (mo/po) to edit, but can’t find any. Could that be an idea for you to add?