Extract SelectionToolbar from MoneyRequestReportActionsList

[adhorodyski]

Explanation of Change

Extracted SelectionToolbar into a standalone self-subscribing component, removing it from MoneyRequestReportActionsList.

Previously, the toolbar's ~8 Onyx subscriptions (report, policy, chatReport, session, and related collections) lived inside the parent list component. Every Pusher event that updated any of those keys caused the entire parent + FlatList tree to re-render — including all visible report action rows. Moving the toolbar into its own component means those subscriptions are scoped to SelectionToolbar only. The parent now receives reportID, transactions, and reportActions as props and is otherwise unaffected by toolbar-related state updates.

Parent reduced from 985 → 746 lines. Fully React Compiler compliant — no manual memoization added.

Fixed Issues

$
PROPOSAL:

Tests

• Verify that no errors appear in the JS console

Offline tests

N/A

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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Screenshots/Videos

Android: Native

Android: mWeb Chrome

iOS: Native

iOS: mWeb Safari

MacOS: Chrome / Safari