### What?
Adding `assetPrefix` to the `next.config` prevents the hot module
reloading functionality.
### Why & How?
Need to incorporate `assetPrefix` into the URL generated for webpack
HMR.
Fixes#11150
#### Testing
1. Add `assetPrefix: '/test'` to the `next.config.mjs` in the root
folder
2. Run `pnpm test _community`
3. Go to the `_community/collections/posts` config and change a field
4. Open post collection in browser and see no change (if this PR is
checked out then you _**will**_ see the change)