workspace-indicator: Fix menu ornament

The default ornament is now HIDDEN, so in order to align items,
we always have set an initial ornament.

In gnome-shell 46, the expected "counter ornament" to DOT is NO_DOT
rather than NONE, so use that.

Part-of: <https://gitlab.gnome.org/GNOME/gnome-shell-extensions/-/merge_requests/305>

extensions/workspace-indicator/extension.js

@@ -349,7 +349,7 @@ class WorkspaceIndicator extends PanelMenu.Button {
         for (let i = 0; i < this._workspacesItems.length; i++) {
             this._workspacesItems[i].setOrnament(i === this._currentWorkspace
                 ? PopupMenu.Ornament.DOT
-                : PopupMenu.Ornament.NONE);
+                : PopupMenu.Ornament.NO_DOT);
         }
     }
 
@@ -393,8 +393,9 @@ class WorkspaceIndicator extends PanelMenu.Button {
                 this._activate(actor.workspaceId);
             });
 
-            if (i === this._currentWorkspace)
-                this._workspacesItems[i].setOrnament(PopupMenu.Ornament.DOT);
+            this._workspacesItems[i].setOrnament(i === this._currentWorkspace
+                ? PopupMenu.Ornament.DOT
+                : PopupMenu.Ornament.NO_DOT);
         }
 
         this._statusLabel.set_text(this._labelText());