[tx-robot] updated from transifex

apps/files/l10n/sr.js

apps/files/l10n/sr.json

apps/user_ldap/l10n/sr.js

apps/user_ldap/l10n/sr.json

core/l10n/sr.js

core/l10n/sr.json

lib/l10n/sr.js

lib/l10n/sr.json

settings/l10n/az.js

settings/l10n/az.json

settings/l10n/cs_CZ.js

settings/l10n/cs_CZ.json

settings/l10n/da.js

settings/l10n/da.json

settings/l10n/de.js

settings/l10n/de.json

settings/l10n/de_DE.js

settings/l10n/de_DE.json

settings/l10n/el.js

settings/l10n/el.json