[tx-robot] updated from transifex

apps/files/l10n/fr.php

apps/files/l10n/pl.php

apps/files/l10n/ru_RU.php

l10n/af/settings.po

l10n/ar/settings.po

l10n/ar_SA/settings.po

l10n/bg_BG/settings.po

l10n/ca/settings.po

l10n/cs_CZ/settings.po

l10n/da/settings.po

l10n/de/settings.po

l10n/el/settings.po

l10n/eo/settings.po

l10n/es/settings.po

l10n/et_EE/settings.po

l10n/eu/settings.po

l10n/eu_ES/settings.po

l10n/fa/settings.po

l10n/fi/settings.po

l10n/fi_FI/settings.po