Marks the hack

app/assets/stylesheets/layout/_work_package.sass

@@ -236,6 +236,7 @@
 
 .work-package-table--container
   table.generic-table
+    // HACK: This prevents a horizontal scroll bar in the work package table when there is nothing to scroll
     width: calc(100% - 10px)
 
 %flex-grow-shrink-zero

frontend/app/ui_components/interactive-table-directive.js

@@ -81,6 +81,8 @@ module.exports = function($timeout, $window){
           // ensure table stretches to container sizes
           getInnerContainer().css('width', '100%');
           if(isWorkPackagesTable()) {
+            // HACK: This prevents a horizontal scroll bar in
+            //       the work package table when there is nothing to scroll
             getBackgrounds().css('width', 'calc(100% - 10px)');
           }
           else {