Disable boosting and reminding from closed groups
<!---
Please read this!
Before opening a new issue, make sure to search for keywords in the issues
filtered by the "T - Bug" label and verify the issue you're about to submit isn't a duplicate.
--->
### Summary
If you boost a closed group post, the post becomes able to view on the boost network as a public post.
Users who see & try to interact with said post can not do so even though they can see it
### Steps to reproduce
Boost post from closed area,
interact with post on account not a member of area.
-- This is hard to test.
### Platform information
ANY/ALL
### What is the current *bug* behaviour?
Can not interact with boosted closed group post.
### What is the expected *correct* behaviour?
Can interact, or can not boost.
### Relevant logs and/or screenshots
[Post of issue](https://www.minds.com/newsfeed/1016482173763416064)
### Possible fixes
issue