Clear selection after moving files

[fabian-zededa]

Suggestion: Selections should be cleared after moving.

Why: When moving files around, we have to press S every time. It's unlikely that the files should be moved again and should stay selected therefore. It's more likely that other files will be selected and moved, thus it would make sense for un-select to be the default behavior. Also, forgetting to hit S will result in a mess on next file operation, in the worst case a deletion. Which happened to me a few times now.

Happy to help with this.