feature request: show changed files

[axet]

After indexes are calculated files can be corrupted and/or changed locally.

Correct checksum only stored within indexed TTH. Would be nice to have recovery files feature which shows locally changed files with option to download corrupted files back from dchub users.

It is easy to detect corrupted files, since modified date is not changed, but content (TTH) is. User can be warned and redownload option or reindex option can be shown.

I guess it can be implemented by showing a dialog with list of corrupted files, hash and redownload buttons.

Or it can be included within default Hash dialog, which can shows unexpected files changes and ask user to redownload files or update hash.