feat: installations e2e tests with playwright

[MarcWadai]

What has been done

cf issues

• Modify element-web-test file to remove docker homeserver specificities
• Troubleshoot and try to see how it can work on our configuration

Issues

• Since we have yarn-linked-dependencies inside the project, playwright cannot be runned. (cannot instantiate two times the playwright instance)

TODO

• Modify install yarn dep scripts to move it to parents files
• Modify all relatives paths
• Adapt e2e tests files

[gitguardian]

⚠️ GitGuardian has uncovered 1 secret following the scan of your pull request.

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🔎 Detected hardcoded secret in your pull request

GitGuardian id	GitGuardian status	Secret	Commit	Filename
4304252	Triggered	Generic Password	81d460e	playwright/e2e/login.spec.ts	View secret

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1. Revoke and rotate the secret.

2. If possible, rewrite git history with git commit --amend and git push --force.

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