[tx-robot] updated from transifex

apps/dav/l10n/ca.js

apps/dav/l10n/ca.json

apps/dav/l10n/gl.js

apps/dav/l10n/gl.json

apps/dav/l10n/pt_BR.js

apps/dav/l10n/pt_BR.json

apps/dav/l10n/sr.js

apps/dav/l10n/sr.json

apps/files_sharing/l10n/ca.js

apps/files_sharing/l10n/ca.json

apps/files_sharing/l10n/gl.js

apps/files_sharing/l10n/gl.json

apps/files_sharing/l10n/pt_BR.js

apps/files_sharing/l10n/pt_BR.json

apps/files_sharing/l10n/sr.js

apps/files_sharing/l10n/sr.json

apps/theming/l10n/hu.js

apps/theming/l10n/hu.json

core/l10n/sr.js

core/l10n/sr.json