Hidden settings not filtered out of search

Description

Some settings are hidden due to different reasons. It's on on the onCreate method of the preference fragments. The settings search however doesn't filter out those settings leading to misunderstandings by the users.

Example: https://www.reddit.com/r/VLC/comments/1jh3vij/unable_to_toggle_the_lower_volume_on_notification/

Expected behavior

The hidden items are filtered out

Actual behavior

They are shown

Steps to reproduce

1. Open the settings
2. Search "lower"
3. Tap the item
4. The Audio preference screen is opened with nothing selected

Screenshot / video

Context

App version

Android version

Device model

App mode

Smartphone

TV

Auto