Remove double-slash from import (#2888)

packages/@uppy/dashboard/src/utils/trapFocus.js

@@ -1,6 +1,6 @@
 const toArray = require('@uppy/utils/lib/toArray')
 const getActiveOverlayEl = require('./getActiveOverlayEl')
-const FOCUSABLE_ELEMENTS = require('@uppy/utils/lib//FOCUSABLE_ELEMENTS')
+const FOCUSABLE_ELEMENTS = require('@uppy/utils/lib/FOCUSABLE_ELEMENTS')
 
 function focusOnFirstNode (event, nodes) {
   const node = nodes[0]