Fix bad refactor (Manager -> State across codebase

bindings/ud.go

dummy/send_test.go

e2e/ratchet/partner/manager.go

e2e/ratchet/partner/manager_test.go

e2e/ratchet/partner/session/session.go

e2e/ratchet/partner/session/session_test.go

e2e/ratchet/partner/utils_test.go

e2e/ratchet/ratchet_test.go

e2e/ratchet/utils_test.go

fileTransfer/oldTransferRecovery_test.go

fileTransfer/receiveNew_test.go

fileTransfer/receive_test.go

fileTransfer/sendNew_test.go

fileTransfer/send_test.go

fileTransfer/utils_test.go

groupChat/makeGroup_test.go

groupChat/manager_test.go

groupChat/receive_test.go

groupChat/sendRequests_test.go

groupChat/send_test.go