[tx-robot] updated from transifex

core/l10n/af.js

core/l10n/af.json

core/l10n/ar.js

core/l10n/ar.json

core/l10n/ast.js

core/l10n/ast.json

core/l10n/bg.js

core/l10n/bg.json

core/l10n/ca.js

core/l10n/ca.json

core/l10n/cs.js

core/l10n/cs.json

core/l10n/da.js

core/l10n/da.json

core/l10n/de.js

core/l10n/de.json

core/l10n/de_DE.js

core/l10n/de_DE.json

core/l10n/el.js

core/l10n/el.json