Replace useEntityModal with local state approach

[gildub]

Replace legacy useEntityModal with local state approach equivalent of :`

  const [createUpdateModalState, setCreateUpdateModalState] = React.useState<
    "create" | JobFunction | null
  >(null);
  const isCreateUpdateModalOpen = createUpdateModalState !== null;
  const jobFunctionToUpdate =
    createUpdateModalState !== "create" ? createUpdateModalState : null;

We want to generalize the latter approach we're implementing for consistency.

To track down the removal of useEntityModal:

• ApplicationAssessmentPageHeader
• ApplicationTableAnalyze
• ApplicationTableAssessment
• Finaly remove hook and test file