discuss: e2e testing

[vacekj]

Problem: some parts of the application are currently not covered by integration tests, and cannot be covered, since they deal with more end-to-end user flows rather than component level testing. Points to discuss.

• tradeoff between higher confidence and higher tests upkeep - is it worth it to go the extra mile on this, or is manual testing fine for now?
• Cypress vs. Playwright - Uniswap uses Cypress, so it should be without issue, but Playwright is more low-level and newer, so issue could be easier to solve than with the rigid high-level approach of Cypress.