[No QA] Docs updates for E/A#91725 surface Signer info needed Home task

[MelvinBot]

Explanation of Change

PR #91725 added a new Signer info needed task to the Time sensitive section of the Home page, surfacing pending signer-info actions for global reimbursement bank accounts. When a workspace admin designates a Director or Senior Officer to act as the signer, that person now sees a task on their Home page and can select Begin to enter their information.

This PR updates the global reimbursement help articles so the documented signer/director step reflects this new entry point. A short note was added to each country guide at the point where the designated signer is told they'll be notified.

Files updated:

• Global-Reimbursement-United-States.md
• Global-Reimbursement-Europe.md
• Global-Reimbursement-Canada.md
• Global-Reimbursement-United-Kingdom.md
• Global-Reimbursement-Australia.md

UI labels were verified against src/languages/en.ts:

• Task title: Signer info needed (homePage.timeSensitiveSection.enterSignerInfo.title)
• Section: Time sensitive (homePage.timeSensitiveSection.title)
• Button: Begin (homePage.forYouSection.begin)
• Tab: Home

Fixed Issues

$ #90996

Related PR: #91725

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.

QA

// 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.

---

@dilshodmackbook-sketch, please review the files changed and confirm they reflect the current behavior. Then mark this PR Ready for review.

[OSBotify]

A preview of your ExpensifyHelp changes have been deployed to https://f3e5b9e7.helpdot.pages.dev ⚡️

Updated articles:

• articles/new-expensify/wallet-and-payments/Global-Reimbursement-Australia
• articles/new-expensify/wallet-and-payments/Global-Reimbursement-Canada
• articles/new-expensify/wallet-and-payments/Global-Reimbursement-Europe
• articles/new-expensify/wallet-and-payments/Global-Reimbursement-United-Kingdom
• articles/new-expensify/wallet-and-payments/Global-Reimbursement-United-States

[dilshodmackbook-sketch]

Reviewed the 5 updated help articles — the added Note block accurately reflects the behavior shipped in #91725. UI labels in the note (Signer info needed, Time sensitive, Begin, Home) match the in-app strings in src/languages/en.ts. Confirming the docs are ready.

I don't have permission to edit the PR description or flip it out of draft, so leaving the Tests / QA copy here for a maintainer to drop in and mark Ready for review:

Tests

1. Open each updated help article on https://help.expensify.com/new-expensify/hubs/wallet-and-payments/ and confirm the new Note block renders correctly under the Director / Senior Officer step:
   • Global-Reimbursement-United-States.md
   • Global-Reimbursement-Europe.md
   • Global-Reimbursement-Canada.md
   • Global-Reimbursement-United-Kingdom.md
   • Global-Reimbursement-Australia.md
2. Verify the note text matches the in-app strings:
   • Task title: Signer info needed
   • Section: Time sensitive
   • Button: Begin
   • Tab: Home
3. Verify markdown formatting (bold labels, spacing, surrounding headings) is preserved and the note does not break the article layout.
4. Cross-check the described behavior against Add "Enter signer info" task to Home Time Sensitive section #91725 (already merged): the designated Director / Senior Officer sees the Signer info needed task on Home → Time sensitive, and Begin opens the Enter Signer Info flow for the correct policy / bank account.

QA

1. Browse to each of the 5 updated Global Reimbursement help articles on help.expensify.com.
2. Verify each article now contains a Note explaining that the designated Director / Senior Officer also sees a Signer info needed task in the Time sensitive section of their Home page, with a Begin button to enter their information.
3. Verify no other content in these articles was unintentionally modified, removed, or reformatted.
4. Verify links, headings, and surrounding step numbering still render correctly on the published site.