Fix margins to be consistent with broader Jenkins UI

[mr-remington]

This PR fixes margins for both overview and console to match the broader Jenkins UI, there's a lot of white space at the margins especially as the screen size gets larger and larger

No issues I saw mention this just something I noticed.

Before:

After:

### Testing done

Submitter checklist

• Make sure you are opening from a topic/feature/bugfix branch (right side) and not your main branch!
• Ensure that the pull request title represents the desired changelog entry
• Please describe what you did
• Link to relevant issues in GitHub or Jira
• Link to relevant pull requests, esp. upstream and downstream changes
• Ensure you have provided tests - that demonstrates feature works or fixes the issue

]

[timja]

Thanks!