MVC - Collapsing job log sections by default
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### Problem to solve
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Today, when a user clicks on a job to access the logs in order to troubleshoot after a failed status or just to check the progress of the job, they are presented with the log details as a bulk. To be able to make sense of the information they are viewing at, users have to scour/browse through the entire log and manually spot the section that concerns them.
### Intended users
* [Delaney (Development Team Lead)](https://about.gitlab.com/handbook/marketing/product-marketing/roles-personas/#delaney-development-team-lead)
* [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)
### User experience goal
Organize the content in the logs and reduce the effort to spot a discrepancy or error.
### Proposal
Segregate the information in the logs into collapsible sections with identifiable names and associated status so users know exactly where to look at to counter a specific problem.
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- Today we already provide users the ability to define pre-collapsed sections. Instead of making this a configurable, we should collapse the section by default to make it more readable
- When collapsed, the sections are flattened. Add required hierarchy through nesting sections when necessary
### Further details
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### Links / references
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