add some stats to jobsets in project view

Dependencies

• [2] PC6UOHH7 add some stats to jobsets in project view
• [3] 5QE3TIHP hydra: add status icon per jobset on project page
• [4] ZI535LI6 * hydra: 'new' UI for project/jobset/job/build
• [*] 7YBYT2LQ

Change contents

• replacement in src/root/project.tt at line 70
  [2.850]→[2.850:873](∅→∅)
  − <td>
  [2.850]

  [2.873]
  + <td align="right">