[YiR] Update flow to show collective for logged out users

[tonisevener]

Phabricator: https://phabricator.wikimedia.org/T379796

Notes

This PR removes the requirement that a user must be eligible to see at least one personalized slide for the entry point to appear. It also defaults to all collective slides from the coordinator if the user is logged out.

Test Steps

1. Ensure device/simulator is in target region. Fresh install app. Log out of app if needed. Go to app Settings and turn off Year in Review. Build up an article history. Now go to app settings and turn ON year in review.
2. Year in Review entry point should show in Profile.
3. You should only see collective slides.
4. Complete year in review flow, answer survey, then log into an account with edits after login prompt.
5. After logging in, go back to year in review flow from Profile.
6. You should see personalized slides now.
7. Go back to profile, log out.
8. After logging out, go back to year in review flow from Profile.
9. You should only see collective slides now.

[l-olson1214]

I'm seeing the first two slides as being personalized on log out, but that may have also included some of the merge conflicts - let's meet up when you're back from PTO!