[CHORE] Setup load testing

[yonocan]

Notes

• Connect to local network?
• Loader.io
• Playwright

[luke-focusedlabs]

Deferring this to some future nerds to implement. Learnings:

Playwright and Artillery are cool, but we will not be able to interact with MetaMask in a headless browser and thus won't be able to use that for load testing. There are mocked utilities for metamask wallets in a cypress codebase found here: https://github.com/gitcoinco/web/blob/master/cypress/support/commands.js (~Line 145)

Perhaps we can provide the ceramic network with a fake wallet ID that is mocked to "preauthenticate" with our app, but that's for another day.

[luke-focusedlabs]

WIP is on branch playwright-artillery under the "load-testing" folder on the Passport repository