[Issue #1757]: E2E tests for search page

[rylew1]

Summary

Fixes #1757

Time to review: 3 min

Changes proposed

• Add e2e tests for search page
• Add e2e test (with FE and API) to its own CI job (ci-frontend-ci.yml)
  • invokes shell script to wait until API is loaded

Context

• run with npm run test:e2e or npm run test:e2e:ui

• to run just the search test npm run test:e2e -- tests/e2e/search.spec.ts

https://github.com/HHS/simpler-grants-gov/assets/93001277/b0bd4eaf-2d83-4f73-b7cd-bd1a728b7638

[github-actions[bot]]

Coverage report for ./frontend

St.:grey_question:	Category	Percentage	Covered / Total
🟢	Statements	84.14%	870/1034
🟡	Branches	65.01%	223/343
🟡	Functions	75.58%	164/217
🟢	Lines	84.18%	809/961

Test suite run success

164 tests passing in 56 suites.

Report generated by 🧪jest coverage report action from ac2bf3539f658029189ac972a06a5556b7b967ff

[rylew1]

PR LGTM, but unfortunately CI is failing

Thanks @coilysiren, but let me try to fix before merge. A couple tests on our search page don't work on Safari - I will ping for reapproval