* Fixes vector-im/element-x-ios/issues/1868 Incorrect `is_verified` flag after successfully running verification flow
- the inner user_identity isn't automatically updated when the flow finishes, needs to be fetched again from encryption
- also replaces `UserIdentity.is_verified` with `Device.is_cross_signed_by_owner`
- depends on matrix-org/matrix-rust-sdk/pull/2775
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Co-authored-by: Doug <douglase@element.io>