Podspec: Make "MXKSwiftHeader.h" private and exclude "MatrixKit-Bridging-Header.h".
Podspec: Make "MXKSwiftHeader.h" private and exclude "MatrixKit-Bridging-Header.h".

matrix-org/matrix-ios-kit,matrix-org/matrix-ios-kit,matrix-org/matrix-ios-kit,matrix-org/matrix-ios-kit