No thunarx support on the shortcut view any more in thunar 4.15.3

thunarx items shown on 1.8.15, but no thunarx items shown in master/4.15.3

added 1. Regression 5. Side Pane - Shortcuts 5. Thunarx labels

changed the description

closed with commit b12247c2

mentioned in issue #437 (closed)

mentioned in commit 96e9cfe1