Investigate how to automaticaly populate prefix under admin user permission panel

**Describe the bug**
Prefixes are showing under https://biocomputeobject.org/api/admin/prefix/prefix/, but some of the newer prefixs don't show up under Users/User Permissions.

**To Reproduce**
Steps to reproduce the behavior:
1. Go to 'https://biocomputeobject.org/api/admin/prefix/prefix/', check all the available perfixes
2. For example, for prefix "BMK", it shows up in [Prefixs](https://biocomputeobject.org/api/admin/prefix/prefix/)
3. The go to [Users](https://biocomputeobject.org/api/admin/auth/user/), select a random user, but in this case, I am using bco_api_user as an example.
4. Scroll down to User Permissions
5. See error that BMK is does not exist
**Expected behavior**
Should show prefix permission options such as "prefix | prefix | Can add BCOs with prefix BMK", and all other prefix-related permissions


This doesn't only happen to BMK prefix but some other new registered prefixes.

**Desktop (please complete the following information):**
- Browser [fairfox]

**Additional context**
I think this issue could be related to portal_userdb