Send2ebook fix download after refactor from #3924 (#4027)

* fix send2ebook download after refactor from #3924

* restore removal from server

plugins/send2ebook.koplugin/main.lua

@@ -26,7 +26,7 @@ local send2ebook_settings
 
 function Send2Ebook:downloadFileAndRemove(connection_url, remote_path, local_download_path)
     local url = connection_url .. remote_path
-    local response = FtpApi:downloadFile(url)
+    local response = FtpApi:ftpGet(url)
 
     if response ~= nil then
         local_download_path = util.fixUtf8(local_download_path, "_")
@@ -142,6 +142,7 @@ function Send2Ebook:process()
       if total_entries > 1 then total_entries = total_entries -2 end --remove result "../" (upper folder) and "./" (current folder)
       for idx, ftp_file in ipairs(ftp_files_table) do
           logger.dbg("Send2Ebook: processing ftp_file:", ftp_file)
+          --TODO recursive download folders
           if ftp_file["type"] == "file" then
 
               info = InfoMessage:new{ text = T(_("Processing %1/%2"), count, total_entries) }