[tx-robot] updated from transifex

apps/files/l10n/ca.php

apps/files/l10n/da.php

apps/files/l10n/de.php

apps/files/l10n/de_DE.php

apps/files/l10n/el.php

apps/files/l10n/es.php

apps/files/l10n/fi_FI.php

apps/files/l10n/it.php

apps/files/l10n/ja_JP.php

apps/files/l10n/pl.php

apps/files/l10n/pt_PT.php

apps/files/l10n/ru.php

apps/files/l10n/si_LK.php

apps/files/l10n/sv.php

apps/files_encryption/l10n/si_LK.php

apps/files_external/l10n/de_DE.php

apps/files_external/l10n/ru.php

apps/files_sharing/l10n/de.php

apps/files_sharing/l10n/de_DE.php

apps/files_sharing/l10n/ru.php