".gif" => "image/gif", ".jpg" => "image/jpeg", ".png" => "image/png", ".svg" => "image/svg+xml", ".webp" => "image/webp", ".avif" => "image/avif", ".jxl" => "image/jxl", ".bmp" => "image/bmp", ".mp3" => "audio/mpeg", ".ogg" => "audio/ogg", ".flac" => "audio/flac", ".m4a" => "audio/mp4", ".wav" => "audio/x-wav", ".mp4" => "video/mp4", ".ogv" => "video/ogg", ".webm" => "video/webm", ".pdf" => "application/pdf", ".txt" => "text/plain; charset=utf-8", ".m4a" => "audio/x-m4a", ".mp4" => "video/x-m4v",