[Issue Payment] [$500] Update error flow for prevent splitting bill with workspace and additional participants

[thienlnam]

As part of #25564, we merged together split bill and request money. However, now you have the ability to split a bill with a workspace as a participant along with other members. This is not supported, and needs to be cleaned up.

We talked about it here: https://expensify.slack.com/archives/C01GTK53T8Q/p1694770696392489?thread_ts=1694746421.663479&cid=C01GTK53T8Q

Let's add a form error that prevents you from having multiple participants that include a workspace when you try to hit 'Split Bill'

Upwork Automation - Do Not Edit

• Upwork Job URL: https://www.upwork.com/jobs/~012cece4afbcaaddc6
• Upwork Job ID: 1702626130119409664
• Last Price Increase: 2023-09-15

[melvin-bot]

Triggered auto assignment to @NicMendonca (Bug), see https://stackoverflow.com/c/expensify/questions/14418 for more details.

[melvin-bot]

Bug0 Triage Checklist (Main S/O)

• This "bug" occurs on a supported platform (ensure Platforms in OP are ✅)
• This bug is not a duplicate report (check E/App issues and #expensify-bugs)
  • If it is, comment with a link to the original report, close the issue and add any novel details to the original issue instead
• This bug is reproducible using the reproduction steps in the OP. S/O
  • If the reproduction steps are clear and you're unable to reproduce the bug, check with the reporter and QA first, then close the issue.
  • If the reproduction steps aren't clear and you determine the correct steps, please update the OP.
• This issue is filled out as thoroughly and clearly as possible
  • Pay special attention to the title, results, platforms where the bug occurs, and if the bug happens on staging/production.
• I have reviewed and subscribed to the linked Slack conversation to ensure Slack/Github stay in sync

[melvin-bot]

Job added to Upwork: https://www.upwork.com/jobs/~012cece4afbcaaddc6

[melvin-bot]

Current assignee @NicMendonca is eligible for the External assigner, not assigning anyone new.

[melvin-bot]

Triggered auto assignment to Contributor-plus team member for initial proposal review - @fedirjh (External)