🚀 Feature: Add a status filter for packages that need subscribers

[JoshuaKGoldberg]

Bug Report Checklist

• I have tried restarting my IDE and the issue persists.
• I have pulled the latest main branch of the repository.
• I have searched for related issues and found none that matched my issue.

Overview

Right now, tidelift-me-up only shows a user's packages whose monetary estimates are >$0. That excludes packages that Tidelift knows about but don't yet have enough subscribers to provide income.

For example, lottie-react-native:

• Does not show up from npx tidelift-me-up --username ljharb --since='2000-01-01' --ownership author --ownership publisher --ownership maintainer --status=available
• Is shown in https://tidelift.com/lifter/search/npm/lottie-react-native right now as "Needs subscribers"

That's a little confusing if you're expecting them to be listed.

Let's add a --status option named ... "needs-subscribers"? Some name like that?

Additional Info

Co-authored-by: @ljharb