[Feature Request]: Profile search bar on "subscribe" section of a channel page

### Guidelines

- [X] I have searched the issue tracker for [open](https://github.com/FreeTubeApp/FreeTube/issues?q=is%3Aopen+is%3Aissue) and [closed](https://github.com/FreeTubeApp/FreeTube/issues?q=is%3Aissue+is%3Aclosed) issues 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.

### Problem Description

I transferred my subscriptions from YT to FT now and have created almost 40–50 profiles for different topics, so it has become a little bit harder to find the profile I need on the channel page.


### Proposed Solution

I suggest adding a small search bar, similar to the one that already works for playlist searches.


### Alternatives Considered

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### Issue Labels

new feature

### Additional Information

The playlist search works in the way that is needed for this feature as well.