Part of the Wave 6: Tags project

Main issue: https://github.com/Expensify/App/issues/32828 Doc section: N/A (Orignal tags doc is here: https://docs.google.com/document/d/1eXGKhdUP98f6RUVYpRzxLi49El9Rizeqq-EYjrF24tU/edit) Project: https://github.com/orgs/Expensify/projects/73

Feature Description

We already support multiple levels of tags on policies in Expensify and within our workspaces. Our current code assumes you have a single tag list. We need to update it to juggle the potential for multiple tags. Thankfully, from there, the rest of the framework is already in place. We will do this by:

• Updating MoneyRequestConfirmationList to retrieve all tags in the policy instead of just the first here. Then, when rendering the MenuItem for tag, iteratively render a single MenuItem for each tag here. The same applies to MoneyTemporaryForRefactorRequestConfirmationList.
• Do the same thing in MoneyRequestView.
• Adjusting the routes for tags to incorporate the tag index (discussion). This means adjusting the current routes for editing/selecting tags in the following way:
  • ${iouType}/new/tag/${reportID} -> ${iouType}/new/tag/0/${reportID}
  • create/${iouType}/tag/${transactionID}/${reportID}/ -> create/${iouType}/tag/0/${transactionID}/${reportID}/
  • r/:threadReportID/edit/:field -> r/:threadReportID/edit/:field/0
• Then for the tag we send to the API, we create a string of all tags, by order of index, delimited by colons, like so tag1:tag2:tag3. The Expensify API already understands this format.
• For displaying the tag, for instance when we have the tag key from getTransactionDetails, we should split the tag by the colon delimiter and display each in it’s corresponding index.
• We’ll need to create a method that translates a tag index to a tag name. This would correspond to the order a tag appears in the policyTags_ OnyxKey:
• For any “Modified Expense” message, anytime we change a single tag level, we’ll just display the entire colon-delimited tag, like we do on OldDot:
  • 

Manual Test Steps

1. In OldDot, create a policy with multiple tags. One can do this by following the instructions here, and using the following csv with multiple tag levels: independentTags.csv
2. Create a new workspace request
3. Make sure you see a row rendered for each tag in the workspace
4. Make sure that selection works for each row, and that the appropriate list of tags show for the appropriate level.
5. Save the request, make sure that the tags save properly on the expense
6. Open the recently saved request, make sure that the saved tag selections show up in the correct rows.
7. Edit the request, again make sure that the selections work the same as when you created the expense, and save properly.

cc @amyevans @rezkiy37 @waterim @puneetlath

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