Fix(l10n): Update translations from Transifex

apps/federatedfilesharing/l10n/ro.js

apps/federatedfilesharing/l10n/ro.json

apps/files/l10n/de_DE.js

apps/files/l10n/de_DE.json

apps/files/l10n/eu.js

apps/files/l10n/eu.json

apps/files/l10n/ro.js

apps/files/l10n/ro.json

apps/files_sharing/l10n/bg.js

apps/files_sharing/l10n/bg.json

apps/files_sharing/l10n/ca.js

apps/files_sharing/l10n/ca.json

apps/files_sharing/l10n/cs.js

apps/files_sharing/l10n/cs.json

apps/files_sharing/l10n/de.js

apps/files_sharing/l10n/de.json

apps/files_sharing/l10n/de_DE.js

apps/files_sharing/l10n/de_DE.json

apps/files_sharing/l10n/en_GB.js

apps/files_sharing/l10n/en_GB.json