[No QA] Docs updates for E/A#98522 escaping quotes and commas in search operators

[MelvinBot]

Explanation of Change

Documents the new search query escaping and quoting behavior introduced by #98522, which lets a search operator value contain a quote or a comma.

Updates docs/articles/new-expensify/reports-and-expenses/Use-Search-Operators-to-Filter-and-Analyze.md:

• Clarifies that wrapping a value in quotes keeps a comma as part of a single value (so merchant:"Globex, Ltd" is one merchant, not an OR list).
• Adds that a literal quote inside a quoted value is escaped with a backslash, e.g. workspace:"Acme \"US\", Inc".
• Extends the FAQ with the comma-in-quotes clarification and a new "How do I search for a value that contains a quote?" entry.

No new UI labels were introduced by the linked PR — the change is search-query grammar only, so the existing Spend tab and Search icon references are unchanged.

Related PR

• Source change: Escape search query values and resolve typed workspace names #98522

@mukhrr, 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://815a238f.helpdot.pages.dev ⚡️

Updated articles:

• articles/new-expensify/reports-and-expenses/Use-Search-Operators-to-Filter-and-Analyze

[stephanieelliott]

@mukhrr, 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

@mukhrr bump on this!

[mukhrr]

lgtm!

[stephanieelliott]

this was handled in another PR!