Migrate remaining crypto tests from Cypress to Playwright

[t3chguy]

For https://github.com/vector-im/wat-internal/issues/37

Changing from @alice to @user caused Rust Crypto to fail with element-hq/element-web#26723 - worked around by changing @bot_XXXX to @zzz_XXXX

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This change is marked as an internal change (Task), so will not be included in the changelog.

[MidhunSureshR]

Changing from @alice to @user caused Rust Crypto to fail with element-hq/element-web#26723 - worked around by changing @bot_XXXX to @zzz_XXXX

Ideally we would have conditionally expected the test to fail when we're running element with rust crypto:

test.fail(testInfo.project.name === 'Rust Crypto', 'See https://github.com/vector-im/element-web/issues/26723');

[t3chguy]

@MidhunSureshR that wouldn't catch a regression in the rust crypto stack which made it fail outside of the edge case though.

[MidhunSureshR]

Sorry, I don't think I understand?

[t3chguy]

@MidhunSureshR if we allowed the test to fail, and rust crypto broke verification outside of the edge case I isolated, then we wouldn't know as the test was expected to fail.