[Feature Request]: Filter AI generated content.

### Guidelines

- [x] I have [searched the issue tracker for open and closed issues](https://github.com/FreeTubeApp/FreeTube/issues?q=is%3Aissue+sort%3Arelevance-desc) that are similar to the feature request I want to file, without success.
- [x] I have searched the [documentation](https://docs.freetubeapp.io/) for information that matches the description of the feature request I want to file, without success.
- [x] This issue contains only one feature request.
- [x] I have read and agree to follow the [rules](https://docs.freetubeapp.io/community/rules/).

### Problem Description

Youtube is implementing automatical detection and labeling of AI generated content.

### Proposed Solution

A switch to not see this content in your subscription list would be a great addition.

### Alternatives Considered

You can only block channels that generate AI content

### Issue Labels

ease of use improvement

### FreeTube Version

0.24.1

### Operating System Version

Macos Tahoe 26.5.1

### Installation Method

.dmg

### Upload screenshots or videos

_No response_

### Additional Information

_No response_

Start by locating the subscription list and the controls that govern which videos it displays. Determine how YouTube's AI-generated-content label is exposed to FreeTube, then verify that an enabled switch excludes matching content while leaving other subscription items visible.

Written by the indexing model from the issue text.