Keep job expanded while deleting artifact from it

What does this MR do and why?

For #370150 (closed)

This MR preserves the expanded state of the rows in the job artifacts table when an artifact is deleted - without it, the rows all return to their default collapsed state when an artifact is deleted. It accomplishes this by adding a local-only field called _showDetails to the job stored in the Apollo cache, which is used by the table to determine whether to show the extra row-details for that row. Then when a row is expanded or collapsed, we update its _showDetails value in the cache.

Screenshots or screen recordings

before	after
Screen_Recording_2022-11-01_at_13.15.06	Screen_Recording_2022-11-01_at_13.13.47

How to set up and validate locally

1. echo "Feature.enable(:artifacts_management_page)" | bundle exec rails console
2. git checkout 370150-keep-job-expanded-when-deleting-artifact
3. find/make/import a project with a pipeline with a job that generates more than one artifact

you can use this CI yaml to generate some sample artifacts:

# .gitlab-ci.yml

potato:
  stage: build
  script:
    - echo 'potato' >> potato.txt
  artifacts:
    expose_as: 'potato'
    paths: ['potato.txt']

tomato:
  stage: build
  script:
    - echo 'tomato' >> tomato.txt
  artifacts:
    expose_as: 'tomato'
    paths: ['tomato.txt']

pineapple:
  stage: build
  script:
    - echo 'pineapple' >> pineapple.txt
  artifacts:
    expose_as: 'pineapple'
    paths: ['pineapple.txt']

apple:
  stage: build
  script:
    - echo 'apple' >> apple.txt
  artifacts:
    expose_as: 'apple'
    paths: ['apple.txt']

toblerone:
  stage: build
  script:
    - echo 'toblerone' >> toblerone.txt
  artifacts:
    expose_as: 'toblerone'
    paths: ['toblerone.txt']

4. run a pipeline for that project - for this you'll need to set up a local runner for GDK or enable runners in gitpod
5. navigate to the project, and in the sidebar select CI/CD => Artifacts
6. expand a job that has more than one artifact
7. delete one of its artifacts
8. check that the job is still expanded after the delete operation is complete

MR acceptance checklist

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