feat(trace-viewer): Collapse sections inside network request

[cpAdm]

• Made sections collapsible
• Store the collapsed state in local storage
• Aligned chevrons with 'x' icon and aligned section's with 'Request' tab name
• Added test

Before:

After:

references: #35214

[github-actions]

Test results for "MCP"

2432 passed, 116 skipped

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Merge workflow run.

[github-actions]

Test results for "tests 1"

1 failed
❌ [playwright-test] › ui-mode-metadata.spec.ts:19 › should render html report git info metadata @windows-latest-node18-2

2 flaky

⚠️ [firefox-library] › library/inspector/cli-codegen-1.spec.ts:1079 › cli codegen › should not throw csp directive violation errors `@firefox-ubuntu-22.04-node18`
⚠️ [webkit-library] › library/inspector/cli-codegen-pick-locator.spec.ts:35 › should update locator highlight `@webkit-ubuntu-22.04-node18`

40318 passed, 787 skipped

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Merge workflow run.