refactor: extract useMoneyRequestReportColumns and useMoneyRequestReportLayout

[sosek108]

Explanation of Change

This is PR 8 of a 10-PR stack decomposing the MoneyRequestReport list components (MoneyRequestReportActionsList / MoneyRequestReportTransactionList) into focused hooks and presentational sub-components (issue #99919, superseding drafts #99307 and #99417).

This slice extracts the transaction table's column derivation and the report-layout (group-by) selection into dedicated hooks:

• New: src/components/MoneyRequestReportView/useMoneyRequestReportColumns.ts — derives which columns the transaction table shows and how wide they are: the getColumnsToShow call with its inputs (billable/comments/reimbursable column gates, tax enablement, saved column preferences), the wide/normal width buckets for the date/posted/amount/tax-amount columns, the table's minimum pixel width, and whether the table needs its own horizontal scroller.
• New: src/components/MoneyRequestReportView/useMoneyRequestReportLayout.ts — owns the report-layout (group-by) selection: reads the two layout NVPs, exposes the effective selection and grouping mode, latches the user's most recent pick so the popover label never flicks through the default while the NVPs settle, and persists selections via setReportLayout.
• Edit: src/components/MoneyRequestReportView/MoneyRequestReportTransactionList.tsx — consumes the two hooks in place of the inline column/layout blocks and drops the locals/imports that moved with them (layout NVP reads, column-size memo, latch state, ReportLayout action imports).

Pure refactor — no behavior change.

Stack note: this PR is stacked on #100036 (decompose/money-request-report-transactions-b1), which is stacked on #100035, #100033, #100030, #100025, #100024 and #100023. Until those PRs merge, the diff here also shows their commits. Only the "Extract useMoneyRequestReportColumns and useMoneyRequestReportLayout" commit belongs to this slice.

Fixed Issues

$ #99919
PROPOSAL:

Tests

1. Open an expense report with transactions — verify the transaction table renders the same columns as before (amount, date, merchant, etc.)
2. On a report with company-card (non-reimbursable) spend, verify the Reimbursable column shows; on a workspace with billable expenses enabled, verify the Billable column shows
3. Add a transaction dated in a previous year — verify the date column widens to show the year
4. Open the "Group by" dropdown — pick Category, Tag, and None — verify the grouping and the dropdown label update accordingly, with no flicker of the label through a default value
5. Narrow the window until the table is wider than the viewport — verify the table gets its own horizontal scroller
6. Open an IOU report — verify the "Columns" customization button is hidden
7. Run npx jest tests/ui/MoneyRequestReportActionsListRejectModalTest.tsx and verify it passes

• Verify that no errors appear in the JS console

Offline tests

1. Go offline and change the "Group by" selection — verify the grouping applies immediately and survives going back online
2. Go offline and add an expense — verify the table columns still derive correctly from the optimistic transaction

QA Steps

Same as Tests.

• Verify that no errors appear in the JS console

PR Author Checklist

• I linked the correct issue in the ### Fixed Issues section above
• I wrote clear testing steps that cover the changes made in this PR
  • I added steps for local testing in the Tests section
  • I added steps for the expected offline behavior in the Offline steps section
  • I added steps for Staging and/or Production testing in the QA steps section
  • I added steps to cover failure scenarios (i.e. verify an input displays the correct error message if the entered data is not correct)
  • I turned off my network connection and tested it while offline to ensure it matches the expected behavior (i.e. verify the default avatar icon is displayed if app is offline)
  • I tested this PR with a High Traffic account against the staging or production API to ensure there are no regressions (e.g. long loading states that impact usability).
• I included screenshots or videos for tests on all platforms
• I ran the tests on all platforms & verified they passed on:
  • Android: Native
  • Android: mWeb Chrome
  • iOS: Native
  • iOS: mWeb Safari
  • MacOS: Chrome / Safari
• I verified there are no console errors (if there's a console error not related to the PR, report it or open an issue for it to be fixed)
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• I added unit tests for any new feature or bug fix in this PR to help automatically prevent regressions in this user flow.
• If the main branch was merged into this PR after a review, I tested again and verified the outcome was still expected according to the Test steps.

Screenshots/Videos

Android: Native

Android: mWeb Chrome

iOS: Native

iOS: mWeb Safari

MacOS: Chrome / Safari

[codecov]

Codecov Report

✅ Changes either increased or maintained existing code coverage, great job!

Files with missing lines	Coverage Δ
...estReportView/MoneyRequestReportEmptyStateView.tsx	100.00% <100.00%> (ø)
...oneyRequestReportView/useMoneyRequestReportData.ts	100.00% <100.00%> (ø)
src/hooks/useMarkAsRead.ts	95.94% <100.00%> (+0.05%)	⬆️
src/hooks/useUnreadMarker.ts	94.44% <100.00%> (+0.15%)	⬆️
...equestReportView/MoneyRequestReportActionsList.tsx	92.77% <91.17%> (+32.45%)	⬆️
...tReportView/useMoneyRequestReportVisibleActions.ts	52.63% <52.63%> (ø)
...stReportView/MoneyRequestReportTransactionList.tsx	0.42% <0.00%> (+0.12%)	⬆️
...questReportView/useMoneyRequestReportPagination.ts	69.04% <69.04%> (ø)
...eyRequestReportView/useMoneyRequestReportLayout.ts	0.00% <0.00%> (ø)
...yRequestReportView/useMoneyRequestReportColumns.ts	0.00% <0.00%> (ø)
... and 4 more
... and 31 files with indirect coverage changes