updated PO files

wiki/src/doc/advanced_topics/lan.de.po

wiki/src/doc/advanced_topics/lan.es.po

wiki/src/doc/advanced_topics/lan.fa.po

wiki/src/doc/advanced_topics/lan.fr.po

wiki/src/doc/advanced_topics/lan.it.po

wiki/src/doc/advanced_topics/lan.pt.po

...t_steps/introduction_to_gnome_and_the_tails_desktop.de.po

...t_steps/introduction_to_gnome_and_the_tails_desktop.es.po

...t_steps/introduction_to_gnome_and_the_tails_desktop.fa.po

...t_steps/introduction_to_gnome_and_the_tails_desktop.fr.po

...t_steps/introduction_to_gnome_and_the_tails_desktop.it.po

...t_steps/introduction_to_gnome_and_the_tails_desktop.pt.po

wiki/src/support/known_issues.de.po

wiki/src/support/known_issues.es.po

wiki/src/support/known_issues.fa.po

wiki/src/support/known_issues.fr.po

wiki/src/support/known_issues.it.po

wiki/src/support/known_issues.pt.po