add initial playwright setup and a quick test

[jemayn]

This PR fixes #24

It adds the initial test setup for playwright, and adds the first test which logs in and tests if a property is first visible as an admin, then logs in as editor and tests if the same property is hidden.

[LottePitcher]

This looks so cool @jemayn

Of course I need to test your test ;-) myself before merging but thank you so much!

[LottePitcher]

Hey @jemayn

When I ran npm install in the AdminOnlyProperty.Tests folder I got the following error

npm ERR! Unexpected token '.'

Could this be a npm version issue? I have nvm installed and it confirms that I have 19.0.0 as the current version. Any idea what version I would need?

[jemayn]

I tried both v18.6 and 19.9 and they both worked for me on a fresh clone.

Did notice an issue though, where the popup marketing banner makes the tests fail if it has not been disabled, haven't found a quick fix, tried porting some of the logic from https://github.com/umbraco/Umbraco.Playwright.Testhelpers/blob/a0c00831094496e81bb779c66c5d392ac69ba0bf/lib/helpers/ApiHelpers.ts#L139-L166 and I could not make it work at all. Also couldn't get their standard login to work, so not sure what's happening there.

Will have to take another look some other time when I have more time on my hands.

[LottePitcher]

I did try with v19.9 and still same issue. I'm switching to a new machine over the holidays, I'll try again from there 😉