Align to Audio does not show processing status in GUI

[DogFilm]

This seems to be a bug: as I do not want to fiddle around with login
theater right now it would be great if anybody would like to add this to
the bugtracker:
The "Align to Audio" feature does not generate any kind of visual feedback
in the GUI - it is not possible to tell if it works, if it does not work,
if it has finished its work and if it was successful or not. This is very
frustrating especially in cases where that feature does not work and
nothing happens at all.

Please add some kind of visual indication about the processing status of
this feature, thanks.
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