Self translate option

Would love to get acces to window with all the sentences used in panel or emails to translate / rename them. Important to let us translate also the boring emails: confirm email, join here etc.

In this case you don't have to support multiple languages as i can just translate each of it for me. Later on you can add build-in translation packs for each language as small upsell or open-source user based translations.

I can edit the Polish version :)