Feature request: Enhance progress bar with write-to-file progress

[Mikachu2333]

What would you like to see?

As shown in the video below, the current version 0.7.1 does not include the process of writing files to the download folder in the full progress bar, which may cause misunderstanding.
For example, when the progress bar reaches 100%, you can see that the file manager does not display files at all, and even after the "Transfer complete!" message appears, the program has only just begun writing the imported file to the device. If the program is interrupted at this point, all progress will be lost, which I think is unreasonable.

Screenrecorder-2026-09-02-08-55-27-305.mp4

Why would this be helpful?

As mentioned above, this contradicts the general intuition of software users. When the progress bar reaches 100%, all operations should be completed, and the program should be able to be interrupted and exited. Currently, the program is still writing even after reaching 100% progress, while the sending end has finished. This means that even if the receiving end is interrupted and the program is restarted, the program cannot continue its process. All currently unfinished files and operations will directly become irretrievable junk files.

Anything else you'd like to add?

may related to #251 and #295 , however, the correlation is very low.