fix(global_menu): fix non-existing option (according to TS)

src/public/app/widgets/buttons/global_menu.ts

@@ -300,7 +300,9 @@ export default class GlobalMenuWidget extends BasicWidget {
         }
 
         this.dropdown = Dropdown.getOrCreateInstance(this.$widget.find("[data-bs-toggle='dropdown']")[0], {
-            alignment: "bottom"
+            popperConfig: {
+                placement: "bottom"
+            }
         });
 
         this.$widget.find(".show-about-dialog-button").on("click", () => this.triggerCommand("openAboutDialog"));