Allow workspace merchant rule creation from spreadsheet import

[stephanieelliott]

Context:

Building on to Workspace Merchant Rules feature, let's allow members to import rules in bulk via spreadsheet import.

Internal Slack discussion for reference

Spreadsheet example

Issue Owner

Current Issue Owner: @truph01

[JmillsExpensify]

No updates on this one. I haven't had time to prioritize it.

[JmillsExpensify]

Same. No updates yet. I'm going to add the design label so we can align on the mocks. The tl;dr for this is that we need to add an issue for bulk uploading workspace merchant rules. We'll use the same CSV patterns we have in other parts of the app.

[melvin-bot]

Triggered auto assignment to @dubielzyk-expensify (Design), see these Stack Overflow questions for more details.

[dubielzyk-expensify]

Depends a bit on what the Rules list looks like, but ignore that for now. I think the flow would basically be "More > Import spreadsheet".

[dubielzyk-expensify]

I've called it Merchant, then new merchant, new category, new tag, but it probably needs wordsmithing. Could drop new from tag and category, but it's kinda nice that it's implied. Also could flip it to say "Existing merchant" or something, then just leave the others to be called their fields and no "New".

cc @Expensify/design for visibility on the above

[shawnborton]

Generally looks good. cc @yuwenmemon for visibility because at one point we had wanted to improve this flow to be more like this:

But let's save that for another day. What Jon has above perfectly matches the existing patterns.