Task-description tests not referencing elements by ID

[ivareri]

I would expect tests to reference elements by ID, and not order of appearance.

The way tests are set up in https://github.com/wurstbrot/DevSecOps-MaturityModel/blob/master/src/app/component/task-description/task-description.component.spec.ts means all test must be changed if a new element is added, or the order elements are displayed in is changed.