Localizable: Add Download failed

Resources/en.lproj/Localizable.strings

@@ -97,6 +97,7 @@
 "DOWNLOAD_FROM_HTTP_HELP" = "Enter an address to download the file to your %@.";
 "DOWNLOAD_FROM_HTTP" = "Downloads";
 "ERROR_NUMBER" = "Error %i occured";
+"DOWNLOAD_FAILED" = "Download failed";
 "FILE_NOT_SUPPORTED" = "File format not supported";
 "FILE_NOT_SUPPORTED_LONG" = "The file format used by %@ is not supported by this version of VLC for iOS.";
 "SCHEME_NOT_SUPPORTED" = "Address scheme not supported";