(feat) async check view permission in group and blog screens

src/blogs/BlogsViewScreen.js

@@ -252,6 +252,12 @@ export default class BlogsViewScreen extends Component {
  const desc = this.props.blogsView.blog.description;
  }
 
+ // check async update of permissions
+ if (!this.props.blogsView.blog.can(FLAG_VIEW, true)) {
+ this.props.navigation.goBack();
+ return null;
+ }
+
  return (
  <View style={[CS.flexContainer, CS.backgroundWhite]}>
  {

src/groups/GroupViewScreen.js

@@ -336,6 +336,12 @@ export default class GroupViewScreen extends Component {
  return <CenteredLoading/>
  }
 
+ // check async update of permissions
+ if (!group.can(FLAG_VIEW, true)) {
+ this.props.navigation.goBack();
+ return null;
+ }
+
  const showPosterFab = this.props.groupView.tab === 'feed' && group.can(FLAG_CREATE_POST);
 
  const memberActionSheet = this.state.memberActions ?