[No QA] Docs updates for E/A#83667 Approve dropdown for reports with held expenses

[MelvinBot]

Explanation of Change

Docs-only follow-up to #83667, which changed how an approver picks between a partial and a full approval when a report contains held expenses.

Before that PR, clicking Approve opened a confirmation modal. It now opens a dropdown menu anchored to the Approve button, with each option labelled with the amount it will approve. The copy in the menu also changed (iou.confirmApprovalAmount was replaced by iou.confirmApprovalWithHeldAmount, and iou.confirmApprovalAllHoldAmount is no longer pluralised).

docs/articles/new-expensify/reports-and-expenses/Approve-Expenses.md still described a confirmation modal, so this updates the "How to approve a report that contains held expenses" section to match. It also notes that the same dropdown appears on the report preview in a chat, and adds a non-rendered screenshot suggestion for the open menu.

I verified the live labels on web against the PR branch — the menu header reads "Report contains held expenses. Approve only compliant expenses, or approve the entire report?" and the options read Approve only $40.00 and Approve $65.00 on a report with one held expense:

The all-held state (only Approve [full amount] offered) is taken from the code, not from a live run — I could not reach that state as the approver on the test account.

Fixed Issues

$ #70383
PROPOSAL:

Tests

// TODO: The human co-author must fill out the tests you ran before marking this PR as "ready for review"
// Please describe what tests you performed that validates your changed worked.

• Verify that no errors appear in the JS console

Offline tests

QA Steps

// TODO: The human co-author must fill out the QA tests you ran before marking this PR as "ready for review".
// Please describe what QA needs to do to validate your changes and what areas do they need to test for regressions.

• 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
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  • 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:
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  • Android: mWeb Chrome
  • iOS: Native
  • iOS: mWeb Safari
  • MacOS: Chrome / Safari
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Screenshots/Videos

Android: Native

Android: mWeb Chrome

iOS: Native

iOS: mWeb Safari

MacOS: Chrome / Safari

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@mkzie2, please review the files changed and confirm they reflect the current behavior. Then post a new comment saying @MelvinBot mark this PR as ready for review.

[OSBotify]

A preview of your ExpensifyHelp changes have been deployed to https://15fbd8ff.helpdot.pages.dev ⚡️

Updated articles:

• articles/new-expensify/reports-and-expenses/Approve-Expenses