accounting_l10n_fr_pca: fix "add new accounts from 2018"

The category titles were missing
3 jobs for fix/accounting_l10n_fr_pca_missing_title in 0 seconds
Status Job ID Name Coverage
  External
passed ERP5.CodingStyleTest-TestRunner1

00:47:19

passed ERP5.PerformanceTest-TestRunner1

00:32:09

failed ERP5.UnitTest-TestRunner1

01:49:53