…ponent

- added validateCompose to flow action helpers
- added getComposeStateToAction and getRecipientsStateToAction to flow action helpers
- updated send msg and send broadcast stateToAction to use helper methods above
- updated SendMsgForm and SendBroadcastForm initializeForm fn's to use helper methods above
- updated SendMsgForm and SendBroadcastForm handleUpdate fn's to use validateCompose helper method
- updated SendMsg main flow render to remove outer check for action.text and move to be an inner check for action.text
- added ComposeElement to SendMsgForm
- updated createSendMsgAction in assetCreators
- added back attachments because MsgLocalizationForm still uses this

todo
- update unit tests