Show visual feedback that the filter is being applied

Dependencies

• [2] AK2UZDS2 Jobset page: Add a new tab to show job status in a matrix

Change contents

• edit in src/root/jobset-job-status-tab.tt at line 5
  [2.1403]

  [2.1403]
  + <img src="/static/images/ajax-loader.gif" alt="Loading..." style="display: none;" id="filter-loading" />
• edit in src/root/jobset-job-status-tab.tt at line 10
  [2.1461]

  [2.1461]
  + $('#filter-loading').show();