Fix Cypress test for Material menu-based delete action

[Copilot]

The task-wizard.delete.spec.cy.ts test was failing because it used an outdated selector to find the delete button directly in the table. The UI now uses Material Design menus (mat-menu) for action buttons.

Changes

• Updated test to click #actionMenu to open the Material menu before accessing the delete button
• Changed selector from .cdk-row .cdk-column-actions .deleteBtn.mat-warn to .cdk-overlay-container [id^=deleteTaskBtn]
• Applied pattern consistently to both delete button interactions (cancel and confirm scenarios)

This aligns with existing patterns in task-wizard.edit.spec.cy.ts and task-wizard.copy.cy.ts.

Before

cy.get('.cdk-row .cdk-column-actions .deleteBtn.mat-warn').first().click();

After

cy.get('.task-actions')
  .first()
  .find('#actionMenu')
  .should('be.visible')
  .click({ force: true });

cy.get('.cdk-overlay-container')
  .find('[id^=deleteTaskBtn]')
  .should('be.visible')
  .first()
  .click({ force: true });

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Fix broken cypress tests</issue_title>
<issue_description>We get this error:

 Running:  task-wizard.delete.spec.cy.ts                                                   (4 of 4)


  Area rules type 1
    1) should create task


  0 passing (37s)
  1 failing

  1) Area rules type 1
       should create task:
     AssertionError: Timed out retrying after 4000ms: Expected to find element: `.cdk-row .cdk-column-actions .deleteBtn.mat-warn`, but never found it.
      at Context.eval (webpack://eform-angular/./cypress/e2e/plugins/backend-configuration-pn/c/task-wizard.delete.spec.cy.ts:101:7)




  (Results)

  ┌────────────────────────────────────────────────────────────────────────────────────────────────┐
  │ Tests:        1                                                                                │
  │ Passing:      0                                                                                │
  │ Failing:      1                                                                                │
  │ Pending:      0                                                                                │
  │ Skipped:      0                                                                                │
  │ Screenshots:  0                                                                                │
  │ Video:        true                                                                             │
  │ Duration:     36 seconds                                                                       │
  │ Spec Ran:     task-wizard.delete.spec.cy.ts                                                    │
  └────────────────────────────────────────────────────────────────────────────────────────────────┘

```</issue_description>

## Comments on the Issue (you are @copilot in this section)

<comments>
</comments>

• Fixes Fix broken cypress tests #567

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