Folded categories in library doesn't get filtered properly

[Blockshift758]

Steps to reproduce

1. Group library(below it's by content rating but something also happens with other groupings)
2. Fold a cathegory
3. Use any of the filter

VID_20231203073926.mp4

Expected behavior

When using any filters the folded categories should stay visible unless it is actually empty when filters are active

Actual behavior

When using filters the folded categories disappear despite having some items meet the filters that are selected.

Crash logs

No response

Neko version

2.14.0, 2.14.2

Android version

Android 13

Device

Realme 11 pro

Other details

No response

Acknowledgements

• I have searched the existing issues and this is a new ticket, NOT a duplicate or related to another open issue.
• I have written a short but informative title.
• I have tried the troubleshooting guide.
• I have updated the app to the newest version Latest.
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