[tx-robot] updated from transifex

apps/dav/l10n/it.js

apps/dav/l10n/it.json

apps/dav/l10n/pl.js

apps/dav/l10n/pl.json

apps/dav/l10n/zh_TW.js

apps/dav/l10n/zh_TW.json

apps/files_external/l10n/ru.js

apps/files_external/l10n/ru.json

apps/files_sharing/l10n/es.js

apps/files_sharing/l10n/es.json

apps/files_sharing/l10n/ru.js

apps/files_sharing/l10n/ru.json

apps/files_sharing/l10n/zh_TW.js

apps/files_sharing/l10n/zh_TW.json

apps/twofactor_backupcodes/l10n/es.js

apps/twofactor_backupcodes/l10n/es.json

apps/workflowengine/l10n/ru.js

apps/workflowengine/l10n/ru.json

core/l10n/es.js

core/l10n/es.json