Bob Silverberg

Migrate /api/test_hero.js from Sinon to Jest

Migrate /api/test_collections.js from Sinon to Jest

Migrate /api/test_categories.js from Sinon to Jest

Migrate /api/test_blocks.js from Sinon to Jest

Migrate /api/test_addonInfo.js from Sinon to Jest

Migrate /api/test_abuse.js from Sinon to Jest

Migrate /unit/amo/test_addonManager.js from Sinon to Jest

Migrate /unit/amo/test_localState.js from Sinon to Jest

Migrate /unit/amo/test_store.js from Sinon to Jest

This is a follow-up to https://github.com/mozilla/addons-frontend/pull/11472. When we know that we have 0 ratings for an add-on, we shouldn't render 4 placeholders, but rather we should render none. We should...