fix(table): updated nested sticky header example with isBorderRow tr

[mcoker]

Updates the nested sticky header docs and example to have <Tr isBorderRow>, which is required for sticky, nested column header tables.

Summary by CodeRabbit

• Documentation

  • Added a note in the nested column headers guide explaining that when the table uses a sticky header, the header section needs an extra row to keep the bottom border visible.

• Bug Fixes

  • Updated the nested sticky header example to render correctly inside a fixed-height container, improving scrolling and sticky header behavior.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 606fa4cc-1949-47af-b90b-fdb34f78fc44

📥 Commits

Reviewing files that changed from the base of the PR and between 4d09b88 and ef54927.

📒 Files selected for processing (1)

• packages/react-table/src/components/Table/examples/TableNestedStickyHeader.tsx

🚧 Files skipped from review as they are similar to previous changes (1)

• packages/react-table/src/components/Table/examples/TableNestedStickyHeader.tsx

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Walkthrough

The nested sticky header example now renders inside a fixed-height wrapper. The nested column header documentation adds a note that sticky headers need an extra Tr with isBorderRow for the bottom border.

Changes

Nested sticky header example and docs note

Layer / File(s)	Summary
Example wrapper and sticky-header note packages/react-table/src/components/Table/examples/TableNestedStickyHeader.tsx, packages/react-table/src/components/Table/examples/Table.md	The nested sticky table example is wrapped in a fixed-height outer div, and the nested column headers docs add the isBorderRow note for sticky headers.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~5 minutes

Suggested labels

Needs design review

Suggested reviewers

• thatblindgeye
• wise-king-sullyman

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly reflects the main nested sticky header example change and mentions the new isBorderRow Tr requirement.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

---

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In
`@packages/react-table/src/components/Table/examples/TableNestedStickyHeader.tsx`:
- Line 164: The TableNestedStickyHeader example has a stray literal backslash
between cells inside the row, which leaves an extra text node in the rendered
output. Remove the trailing backslash from the `<Tr>` content in the
`TableNestedStickyHeader` example so the row only contains the intended `<Td>`
elements.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

---

ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 8c71f6ba-7348-450e-85e0-4fba8c8d95cb

📥 Commits

Reviewing files that changed from the base of the PR and between 894e315 and 4d09b88.

📒 Files selected for processing (2)

• packages/react-table/src/components/Table/examples/Table.md
• packages/react-table/src/components/Table/examples/TableNestedStickyHeader.tsx

[patternfly-build]

Preview: https://pf-react-pr-12527.surge.sh

A11y report: https://pf-react-pr-12527-a11y.surge.sh