erp5_web: reuse the web section logic

4 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
passed ERP5.CodingStyleTest-Master

01:29:23

passed ERP5.PerformanceTest-Master

00:32:27

passed SlapOS.Eggs.UnitTest-Master.Python2

00:21:24

passed SlapOS.Eggs.UnitTest-Master.Python3