Add a label "shared with others" for export shared with other peoples

src/Bundle/ChillMainBundle/Entity/SavedExport.php

@@ -176,6 +176,14 @@ class SavedExport implements TrackCreationInterface, TrackUpdateInterface
         ]);
     }
 
+    /**
+     * Return true if shared with at least one user or one group
+     */
+    public function isShared(): bool
+    {
+        return $this->sharedWithUsers->count() > 0 || $this->sharedWithGroups->count() > 0;
+    }
+
     /**
      * Determines if the user is shared with either directly or through a group.
      *