Improve edit view of runners in the admin area
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### Release notes
Runners in the admin view are editable from 2 different places, and contain edit views that are out-dated and not easy to use. They combine read-only and editable data into one screen, which is confusing. To improve the experience, we should separate out the edit view of runners, add clarification to editable items, and improve the overall usability by replacing components with Pajamas, accessible patterns.
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### Problem to solve
Runners in the admin view are editable from 2 different places, and contain edit views that are out-dated and not easy to use. They combine read-only and editable data into one screen, which is confusing.
<!-- What problem do we solve? Try to define the who/what/why of the opportunity as a user story. For example, "As a (who), I want (what), so I can (why/value)." -->
### Intended users
* [Priyanka (Platform Engineer)](https://about.gitlab.com/handbook/marketing/product-marketing/roles-personas/#priyanka-platform-engineer)
* [Sidney (Systems Administrator)](https://about.gitlab.com/handbook/marketing/product-marketing/roles-personas/#sidney-systems-administrator)
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* [Cameron (Compliance Manager)](https://about.gitlab.com/handbook/marketing/product-marketing/roles-personas/#cameron-compliance-manager)
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* [Delaney (Development Team Lead)](https://about.gitlab.com/handbook/marketing/product-marketing/roles-personas/#delaney-development-team-lead)
* [Presley (Product Designer)](https://about.gitlab.com/handbook/marketing/product-marketing/roles-personas/#presley-product-designer)
* [Sasha (Software Developer)](https://about.gitlab.com/handbook/marketing/product-marketing/roles-personas/#sasha-software-developer)
* [Devon (DevOps Engineer)](https://about.gitlab.com/handbook/marketing/product-marketing/roles-personas/#devon-devops-engineer)
* [Sidney (Systems Administrator)](https://about.gitlab.com/handbook/marketing/product-marketing/roles-personas/#sidney-systems-administrator)
* [Sam (Security Analyst)](https://about.gitlab.com/handbook/marketing/product-marketing/roles-personas/#sam-security-analyst)
* [Rachel (Release Manager)](https://about.gitlab.com/handbook/marketing/product-marketing/roles-personas/#rachel-release-manager)
* [Alex (Security Operations Engineer)](https://about.gitlab.com/handbook/marketing/product-marketing/roles-personas/#alex-security-operations-engineer)
* [Simone (Software Engineer in Test)](https://about.gitlab.com/handbook/marketing/product-marketing/roles-personas/#simone-software-engineer-in-test)
* [Allison (Application Ops)](https://about.gitlab.com/handbook/marketing/product-marketing/roles-personas/#allison-application-ops)
* [Priyanka (Platform Engineer)](https://about.gitlab.com/handbook/marketing/product-marketing/roles-personas/#priyanka-platform-engineer)
* [Dana (Data Analyst)](https://about.gitlab.com/handbook/marketing/product-marketing/roles-personas/#dana-data-analyst)
* [Eddie (Content Editor)](https://about.gitlab.com/handbook/marketing/product-marketing/roles-personas/#eddie-content-editor)
-->
### Metrics
Track the time spent on the edit page for runners.
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### User experience goal
Have a separate editing experience for runners that can then be used across GitLab where runners appear.
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### Proposal
Create an edit view that appears when you select the pencil next to a runner from the runner admin table or from the read-only view.
### Design assets
* :art: See [design management designs](https://gitlab.com/gitlab-org/gitlab/-/issues/299758/designs/Table.png) below
* :sparkles: [Figma design file](https://www.figma.com/file/BR7uFYXKi098NhwjnaR0cu/Runner-Enterprise-Management---Default-view?node-id=254%3A16126) *Warning: This file is huge so it may be difficult to navigate. I'd suggest checking out the prototype for final interactions.*
* :paintbrush: [Prototype](https://www.figma.com/proto/BR7uFYXKi098NhwjnaR0cu/Runner-Enterprise-Management---Default-view?node-id=405%3A49738&scaling=min-zoom&page-id=254%3A16126&starting-point-node-id=405%3A49738)
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### Further details
Eventually, we will be able to reuse this edit view for groups and projects, if an admin were jumping around between views.
<!-- Include use cases, benefits, goals, or any other details that will help us understand the problem better. -->
### Permissions and Security
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* [ ] Add expected impact to members with no access (0)
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### Availability & Testing
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### Available Tier
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### What does success look like, and how can we measure that?
Success would be that administrators are able to edit runners faster to fix any problems they are facing. We'd have to compare the current experience to the new one to effectively measure that.
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### What is the type of buyer?
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### Is this a cross-stage feature?
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### Links / references
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