[TASK-1083] Add utils for determining MMO labeling

[jamesrkiger]

Checklist

1. If you've added code that should be tested, add tests
2. If you've changed APIs, update (or create!) the documentation
3. Ensure the tests pass
4. Run ./python-format.sh to make sure that your code lints and that you've followed our coding style
5. Write a title and, if necessary, a description of your work suitable for publishing in our release notes
6. Mention any related issues in this repository (as #ISSUE) and in other repositories (as kobotoolbox/other#ISSUE)
7. Open an issue in the docs if there are UI/UX changes
8. Create a testing plan for the reviewer and add it to the Testing section

Description

Adds two helper utils for determining whether an MMO should be referred to as an 'organization' or as a 'team'. One of the utils returns a translated string, with options for plural and capitalization.

Notes

I felt it would be unnecessarily complex to add in the potential for possessive case, so I also abstracted and exported a more simplistic util that just determines which term should be used. So if someone needs possessive case or they will use the label multiple times in a string they can just write out two separate translated strings themselves and use the util to pick which one to return.

Also note that this is may be merged ahead of the backend work for this feature: #5182. I have set the upcoming "use_team_label" field in the envStore as optional for the time being. We will want to remove that once the backend work is merged. But it should not have any impact on current functioning of the frontend.

Testing

Testing may be more hassle than it is worth for this. I'd recommend just double-checking my logic. But if you would like to test, 'yourPlan.component.tsx' already imports both the envStore and subscription context. You can import these functions there and console log the results before and after subscribing to an enterprise plan, for example.

[notion-workspace]

Create util for determining whether UI should refer to teams or organizations

[duvld]

Tiny comment related changes--I'm going to check with the figma to see if the grammar and everything is accounted for, otherwise it looks good

[duvld]

I think we should use absolute path for imports