### What?
Previously, the `admin.group` property on `collection` / `global`
configs allowed for a custom group and the `admin.hidden` property would
not only hide the entity from the nav sidebar / dashboard but also
disable its routes.
### Why?
There was not a simple way to hide an entity from the nav sidebar /
dashboard but still keep the entities routes.
### How?
Now - we've added the `false` type to the `admin.group` field to account
for this.
Passing `false` to `admin.group` will hide the entity from the sidebar
nav and dashboard but keep the routes available to navigate.
I.e
```
admin: {
group: false,
},
```
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