### What?
This PR makes `filterFields` recurse into **fields with subfields**
(e.g., tabs, row, group, collapsible, array) so nested fields with
`admin.disableListColumn: true` (or hidden/disabled fields) are properly
excluded.
### Why?
Nested fields with `admin.disableListColumn: true` were still appearing
in the list view.
Example: a text field inside a `row` or `group` continued to show as a
column despite being marked `disableListColumn`.
### How?
- Call `filterFields` recursively for `tab.fields` and for any field
exposing a `fields` array.
Fixes#13496
9f7d8c65d5
