* Replace `MatrixClient.isRoomEncrypted` by `MatrixClient.CryptoApi.isEncryptionEnabledInRoom` in `useIsEncrypted` * Catch error * Return `null` when computed * Use `useRoomState` & `useAsyncMemo`
* Replace `MatrixClient.isRoomEncrypted` by `MatrixClient.CryptoApi.isEncryptionEnabledInRoom` in `useIsEncrypted` * Catch error * Return `null` when computed * Use `useRoomState` & `useAsyncMemo`