[tx-robot] updated from transifex

apps/federatedfilesharing/l10n/nl.js

apps/federatedfilesharing/l10n/nl.json

apps/files/l10n/da.js

apps/files/l10n/da.json

apps/sharebymail/l10n/nl.js

apps/sharebymail/l10n/nl.json

apps/systemtags/l10n/nl.js

apps/systemtags/l10n/nl.json

apps/theming/l10n/ar.js

apps/theming/l10n/ar.json

apps/theming/l10n/bg.js

apps/theming/l10n/bg.json

apps/theming/l10n/cs.js

apps/theming/l10n/cs.json

apps/theming/l10n/da.js

apps/theming/l10n/da.json

apps/theming/l10n/de.js

apps/theming/l10n/de.json

apps/theming/l10n/de_DE.js

apps/theming/l10n/de_DE.json