* Adds valid status to the feedback_message model and a spec to validate the status
* Adds an unresolve button to resolved vomits in _abuse_reports.html.erb
* Adds functions to update valid status in reaction_controller.js
* Use invalidate in place of unresolve for unconfirming vomit button
* Add option to reopen vomit reactions marked as invalid and invalidate resolved vomits
- Adds a Reopen button under the invalid tab
- Adds confirmedStatus JS to reaction_controller.js
- Adds conditional to _abuse_reports.html.erb