[tx-robot] updated from transifex

apps/files/l10n/de_DE.js

apps/files/l10n/de_DE.json

apps/files/l10n/es.js

apps/files/l10n/es.json

apps/files/l10n/fi.js

apps/files/l10n/fi.json

apps/files/l10n/it.js

apps/files/l10n/it.json

apps/files/l10n/lt_LT.js

apps/files/l10n/lt_LT.json

apps/files/l10n/pl.js

apps/files/l10n/pl.json

apps/files/l10n/pt_BR.js

apps/files/l10n/pt_BR.json

apps/files/l10n/ru.js

apps/files/l10n/ru.json

apps/files/l10n/sr.js

apps/files/l10n/sr.json

apps/files_external/l10n/es.js

apps/files_external/l10n/es.json