operations-ui-manager: don’t launch default archive handler

Ghost User requested to merge (removed):unsupported-archive-types into master

If archive decompression fails due to missing support, Nautilus tries to launch the default application for the file type, which results in an infinite loop in cases where Nautilus is the default application. This commit removes that code and makes an application chooser always appear with a heading to inform the user.

Works around #51 (closed)

Edited by Ghost User

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