Add expand/collapse all for Dag Run conf JSON in Dag Runs list

[ashutosh264]

Add expand/collapse-all controls to the Dag Runs page for conf JSON cells, matching the pattern used on XCom, Events, and Assets.

• Wire ExpandCollapseButtons + useDisclosure so conf cells use collapsed={!open}
• Add one interaction test (mocked RenderedJsonField; localStorage seeds conf column visibility for the test harness)
• Add sample conf to the run_in_range mock handler for that test

related: #68904

[ashutosh264]

Screenshots -

1. Collapse

2. Expand

[bbovenzi]

Care to rebase and see if that solves the CI error?

[ashutosh264]

Care to rebase and see if that solves the CI error?

It worked, all checks passed.

[github-actions]

Backport successfully created: v3-3-test

Note: As of Merging PRs targeted for Airflow 3.X
the committer who merges the PR is responsible for backporting the PRs that are bug fixes (generally speaking) to the maintenance branches.

In matter of doubt please ask in #release-management Slack channel.

Status	Branch	Result
✅	v3-3-test