Whitespace fixes in apps

apps/files/admin.php

apps/files/ajax/list.php

apps/files/ajax/newfile.php

apps/files/ajax/rawlist.php

apps/files/ajax/scan.php

apps/files/ajax/timezone.php

apps/files/appinfo/update.php

apps/files/download.php

apps/files/js/files.js

apps/files/settings.php

apps/files/templates/admin.php

apps/files_encryption/js/settings.js

apps/files_encryption/lib/crypt.php

apps/files_encryption/lib/cryptstream.php

apps/files_encryption/lib/proxy.php

apps/files_encryption/tests/encryption.php

apps/files_encryption/tests/proxy.php

apps/files_encryption/tests/stream.php

apps/files_external/ajax/addRootCertificate.php

apps/files_external/js/settings.js