[tx-robot] updated from transifex

apps/files/l10n/ca.php

apps/files/l10n/nb_NO.php

apps/files_encryption/l10n/nb_NO.php

apps/files_encryption/l10n/ru.php

apps/files_external/l10n/nb_NO.php

apps/user_webdavauth/l10n/ca.php

apps/user_webdavauth/l10n/pt_PT.php

core/l10n/ca.php

core/l10n/el.php

core/l10n/nb_NO.php

core/l10n/ru.php

l10n/ach/files_sharing.po

l10n/ady/files_sharing.po

l10n/af_ZA/files_sharing.po

l10n/ak/files_sharing.po

l10n/am_ET/files_sharing.po

l10n/ar/files_sharing.po

l10n/ast/files_sharing.po

l10n/az/files_sharing.po

l10n/be/files_sharing.po