Refactor homepage recent projects to use ERAS

[goplayoutside3]

Package

lib-user

Linked Issue and/or Talk Post

Follows: zooniverse/eras#76
Might fix: #6332

Describe your changes

• Use eras instead of /project_preferences to fetch contribution count per project on the homepage and sort the Recent Projects section.

How to Review

• Looking at the Recent Projects section, compare your signed-in homepage at https://www.zooniverse.org to app-root run locally. The order and classification count might vary a little bit because we're migrating to ERAS from /project_preferences.
• With the changes in this PR, the stats count on each Recent Projects badge should match the stats count on your stats page. For instance, eras says I made 123 classifications on i-fancy-cats which is displayed on my homepage and in the Top Projects of my all-time stats page.
• Note: do not compare Recent Projects on app-root's homepage to Recent Projects on the old PFE page. They intentionally use two completely different API requests.

Checklist

PR Creator - Please cater the checklist to fit the review needed for your code changes.
PR Reviewer - Use the checklist during your review. Each point should be checkmarked or discussed before PR approval.

General

• Tests are passing locally and on Github
• Documentation is up to date and changelog has been updated if appropriate
• You can yarn panic && yarn bootstrap or docker-compose up --build and FEM works as expected
• FEM works in all major desktop browsers: Firefox, Chrome, Edge, Safari (Use Browserstack account as needed)
• FEM works in a mobile browser

General UX

Example Staging Project: i-fancy-cats

• All pages of a FEM project load: Home Page, Classify Page, and About Pages
• Can submit a classification
• Can sign-in and sign-out

[goplayoutside3]

Fixes a prop-types warning following #6379

[coveralls]

coverage: 77.794% (-0.008%) from 77.802%
when pulling ccf090c on refactor-homepage-recent-projects
into d2b2191 on master.

[mcbouslog]

LGTM! Confirmed locally works as expected 👍 .

The projects listed were a little a different because I think project preferences updates per visiting a project's Talk or for reasons other than classifications, compared to these changes which reflect recent ERAS classifications exclusively. I think that's ok, but just noting.

[mcbouslog]

I don't think it's an issue, but noting if I have 20 projects per line 19, but then private/deleted projects are filtered out here, then there might be less than 20 or an inconsistent number of projects for some users.

[goplayoutside3]

Agreed. I think this is fine for the homepage, but we'll need to discuss handling private and/or deleted projects when creating an All Projects page with 20-per-page pagination.