Cleaning Translation files from unnecessary strings

Hi.
:mrgreen:

I have been observing a problem for some time.
However, today I discovered that it is much deeper than I expected.
I am presenting the details here:
https://github.com/FreeCAD/FreeCAD-translations/issues/294

I will ask everyone for their insights and comments. :bulb:
Does anyone have any idea how this situation came about? How should we deal with it :question:
I also have no idea how to fix it. :unamused: