Suggestion for File Management Panel's duplication handling

My apologies for this confusing title. I am not a native English speaker, so there may be some mistakes within. Hope I can make things clear.

Currently, when a file is downloaded to a local folder that in which existing a file with same name and extension, looks like WindTerm will automatically overwrite the duplicated file without ask. Also, the folder selector of the downloader cannot show the files in the current folder (and also a user can select a target folder without entering it), so it is impossible to manually confirm if there is any duplication conflict.

I think this may cause unwilling data lose, so it's better to add a dup-check and confirm with the user if there is any file need to be overwritten.

Start by locating the downloader's folder selector and the code that handles an existing file during download. Confirm how overwrite decisions are currently made, then define completion as warning about duplicate names and requiring explicit confirmation before overwriting, while allowing the current folder's files to be inspected.

Written by the indexing model from the issue text.