Added the ability to change bar locations. (#257)

* Added the ability to change bar locations.

* Update dropdown margins

* Make dropdown to bar gap configurable and organized code.

modules/menus/bluetooth/index.ts

@@ -1,5 +1,5 @@
 import Window from 'types/widgets/window.js';
-import DropdownMenu from '../DropdownMenu.js';
+import DropdownMenu from '../shared/dropdown/index.js';
 import { Devices } from './devices/index.js';
 import { Attribute, Child } from 'lib/types/widget.js';