FTUE: Use the Identity server specified in the well-known

[ismailgulek]

Fixes #6177

[github-actions]

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[ismailgulek]

Tests crash with Riot (21626) encountered an error (Early unexpected exit, operation never finished bootstrapping - no restart will be attempted. (Underlying Error: Crash: Riot (21626) CommonConfiguration.setupSettingsWhenLoaded(for:). If you believe this error represents a bug, please attach the result bundle at /Users/runner/work/element-ios/element-ios/build/test/Riot.xcresult)).

It seems matrixSession.crypto is nil.

[pixlwave]

LGTM.

On the tests, I added a MockSessionCreator as part of #6229 to help with the crypto issue as SessionCreator creates the session in the same way as AuthenticationViewController by adding an MXKAccount. But that's not really of help here, and that PR is also failing tests when run on the CI. Not sure what the best route is going to be 🫤

[ismailgulek]

Tests crash with Riot (21626) encountered an error (Early unexpected exit, operation never finished bootstrapping - no restart will be attempted. (Underlying Error: Crash: Riot (21626) CommonConfiguration.setupSettingsWhenLoaded(for:). If you believe this error represents a bug, please attach the result bundle at /Users/runner/work/element-ios/element-ios/build/test/Riot.xcresult)).

It seems matrixSession.crypto is nil.

It was due to the credentials.deviceId was not provided in the mock credentials and MXKAccountManager instance saved this account like a real one into its file. I've added savingAccountsEnabled property and disabled it in the tests to overcome this.

[pixlwave]

Ah, nice 🥳