Merge branch '22709-issues-board-items-often-not-clickable' into 'master'

Applied short delay to board drag

See merge request gitlab-org/gitlab!24526

app/assets/javascripts/boards/mixins/sortable_default_options.js

@@ -26,6 +26,7 @@ export function getBoardSortableDefaultOptions(obj) {
     scrollSpeed: 20,
     onStart: sortableStart,
     onEnd: sortableEnd,
+    fallbackTolerance: 1,
   });
 
   Object.keys(obj).forEach(key => {