update langage file

Hi, in 5.0, there is one little french translation to update, I believe, in list page :

• inline add is translated as 'Ajouter'
  
• Inline edit is translated by 'Editer'.
  These translation are quite correct, but when il list page we have 'add' and 'inline add' buttons, so, we have twice the srting 'Ajouter'. Same issue for 'Editer'.
  I can change it in visual editor, for each list page of each project, but it's tedious.
  Is there any way to update it directly in PHPR core, so it should be ok for each project ?