[tx-robot] updated from transifex

apps/files/l10n/ast.php

apps/files/l10n/bg_BG.php

apps/files/l10n/sl.php

apps/files_encryption/l10n/ast.php

apps/files_encryption/l10n/bg_BG.php

apps/files_encryption/l10n/fr.php

apps/files_sharing/l10n/ast.php

apps/files_trashbin/l10n/fa.php

apps/files_versions/l10n/fa.php

apps/user_webdavauth/l10n/fa.php

core/l10n/es.php

core/l10n/fa.php

l10n/ast/files.po

l10n/ast/files_encryption.po

l10n/ast/files_sharing.po

l10n/ast/lib.po

l10n/bg_BG/files.po

l10n/bg_BG/files_encryption.po

l10n/es/core.po

l10n/fa/core.po