Bank files validation
- Some users are dropping unrelated random .bin files in the Bank folder : we now check if the files are valid Banks
- Invalid files are marked as such
- Invalid files cannot be opened as a Bank
- Invalid files can be deleted from the listing (same as any valid Banks)
Bank file deletion
- Add soft-delete system
- Deleted Banks are now moved inside a "trash" sub-folder, keeping the same game folder structure
- Restoring deleted Banks require manual action (moving the file back to the corresponding game folder)
Bank name checks
- Now checks if the Bank name is already used for the target game
- Add UI feedback when trying to create / rename a Bank with an already existing name