[iOS] can not download file having empty character in name

[huynguyennovem]

Steps:

• Download a file has name: Image from iOS.png
• File can not be downloaded

Expected result:

File should be downloaded and file state should be done (checked green icon)

Logs

Absolute savedDir path: /var/mobile/Containers/Data/Application/9562F48F-EB8F-4EFC-B569-7FC6FA6DD35C/Documents
execute query: INSERT INTO task (task_id,url,status,progress,file_name,saved_dir,headers,resumable,show_notification,open_file_from_notification,time_created) VALUES ("com.app.netshare.download.task.73493.1691301891.514599","http://192.168.0.4:8080/Image from iOS.png",1,0,"<null>","","%7B%7D",0,1,1,1691301891515)
[logging-persist] cannot open file at line 45452 of [9ff244ce07]
[logging-persist] os_unix.c:45453: (0) open(/var/mobile/Containers/Data/Application/9562F48F-EB8F-4EFC-B569-7FC6FA6DD35C/Library/Application Support/download_tasks.sql) - Undefined error: 0
Could not execute the query.
flutter: Callback on background isolate: task (com.app.netshare.download.task.73493.1691301891.514599) is in status (DownloadTaskStatus(1)) and process (0)
Task <B46D7D53-F467-4911-B4F7-F3F49A609613>.<4> finished with error [-1002] Error Domain=NSURLErrorDomain Code=-1002 "unsupported URL" UserInfo={_NSURLErrorRelatedURLSessionTaskErrorKey=(
    "BackgroundDownloadTask <B46D7D53-F467-4911-B4F7-F3F49A609613>.<4>"
), NSLocalizedDescription=unsupported URL, _NSURLErrorFailingURLSessionTaskErrorKey=BackgroundDownloadTask <B46D7D53-F467-4911-B4F7-F3F49A609613>.<4>}
-[FlutterDownloaderPlugin URLSession:task:didCompleteWithError:] HTTP status code: 0
Download completed with error: unsupported URL
flutter: Callback on background isolate: task (com.app.netshare.download.task.73493.1691301891.514599) is in status (DownloadTaskStatus(4)) and process (-1)
[logging-persist] cannot open file at line 45452 of [9ff244ce07]
[logging-persist] os_unix.c:45453: (0) open(/var/mobile/Containers/Data/Application/9562F48F-EB8F-4EFC-B569-7FC6FA6DD35C/Library/Application Support/download_tasks.sql) - Undefined error: 0
Could not execute the query.
flutter: Download taskId: com.app.netshare.download.task.73493.1691301891.514599
flutter: [DownloadService] Download stream log: DownloadEntity(com.app.netshare.download.task.73493.1691301891.514599, Image from iOS.png, http://192.168.0.4:8080/Image from iOS.png, /var/mobile/Containers/Data/Application/9562F48F-EB8F-4EFC-B569-7FC6FA6DD35C/Documents, DownloadManner.flutterDownloader, DownloadState.downloading)
flutter: Fetched files: 41