French translation

update po

- changelog updated

Add new icons

Related to #31

Approach to solve the enhancement

Change style and colors

It was needed to set wrap_mode and max_width_chars to the label

changing item.Sensitivity to SENSITIVITY_WITH_GRID you get all the items
aligned

Reorganise context menu and remove non-destructive delete dialogs

- Drag n Drop modifiers
- Progress Dialog while copying files

Set the ellipsis at the end of the label.

Also allows 2 lines labels instead of stretching it horizontally