[tx-robot] updated from transifex

apps/files/l10n/cs_CZ.php

apps/files/l10n/gl.php

apps/files/l10n/ja_JP.php

apps/files/l10n/sv.php

l10n/ar/core.po

l10n/ar/files.po

l10n/bg_BG/core.po

l10n/bg_BG/files.po

l10n/bn_BD/core.po

l10n/bn_BD/files.po

l10n/ca/core.po

l10n/ca/files.po

l10n/cs_CZ/core.po

l10n/cs_CZ/files.po

l10n/da/core.po

l10n/da/files.po

l10n/de/core.po

l10n/de/files.po

l10n/de_DE/core.po

l10n/de_DE/files.po