[tx-robot] updated from transifex

apps/files/l10n/es.js

apps/files/l10n/es.json

apps/files_external/l10n/sl.js

apps/files_external/l10n/sl.json

apps/files_sharing/l10n/es.js

apps/files_sharing/l10n/es.json

apps/files_sharing/l10n/sl.js

apps/files_sharing/l10n/sl.json

apps/systemtags/l10n/cs_CZ.js

apps/systemtags/l10n/cs_CZ.json

apps/systemtags/l10n/de.js

apps/systemtags/l10n/de.json

apps/systemtags/l10n/de_DE.js

apps/systemtags/l10n/de_DE.json

apps/systemtags/l10n/es.js

apps/systemtags/l10n/es.json

apps/systemtags/l10n/sl.js

apps/systemtags/l10n/sl.json

core/l10n/ar.js

core/l10n/ar.json