* Stop using Rust's JoinRule.private in mocks. It isn't used anywhere else (see MSC4413 for more context). * Use our own JoinRule (and AllowRule) types. * Update ElementX/Sources/Services/Room/JoinRule.swift Co-authored-by: Stefan Ceriu <stefan.ceriu@gmail.com> --------- Co-authored-by: Stefan Ceriu <stefan.ceriu@gmail.com>