Installation fails on a system with localized user subdirectories

[zenmonkeykstop]

• I have searched for duplicates or related issues

Description

The installation procedure uses the hard-coded /home/user/Desktop path, which does not exist on systems set up with the fr_FR locale (and likely others), as it is set up with /home/user/Bureau instead.

Steps to Reproduce

Install Qubes with fr_FR locale
Install SDW following usual process

Expected Behavior

Installation completes successfully.

Actual Behavior

Installation fails when installing SecureDropUpdater.desktop, as the expected parent directory does not exist.

Comments

The correct value per-locale can be found via xdg-user-dir DESKTOP - so we should probably use that. In the meantime, @cfm recommended a symlink workaround, which does allow the installation to proceed with minimal cultural insensitivity.