new & fix

- new: switch of sftp `rm -rf` dir
- fix: sftp upload
- fix: sftp uploading progress
- opt.: editor will save content if is editing file

lib/view/page/storage/local.dart

@@ -315,7 +315,7 @@ class _LocalStoragePageState extends State<LocalStoragePage> {
               }
               locator<SftpProvider>().add(SftpReq(
                 spi,
-                remotePath,
+                '$remotePath/$fileName',
                 file.absolute.path,
                 SftpReqType.upload,
               ));