Update Installer Script (run postInstall before shortcut creation) (#1170)

Avoid issues if postInstall() creates the executable which the shortcut refers to.

Author: Zemogiter

Engines/Wine/QuickScript/Installer Script/script.js

@@ -95,10 +95,10 @@ module.default = class InstallerScript extends QuickScript {
             );
         }
 
-        this._createShortcut(wine.prefix());
-
         this._postInstall(wine, setupWizard);
 
+        this._createShortcut(wine.prefix());
+
         // back to generic wait (might have been changed in postInstall)
         setupWizard.wait(tr("Please wait..."));