[Feature request] Alphabetical Scroll Bar for Subscriptions

[mhdasm]

Checklist

• I have searched for existing issues (open and closed) and confirmed this feature hasn't been requested before
• I believe this feature request will benefit more than 10% of users, not just myself

Feature Description

Navigating through a large list of subscriptions in NewPipe can become inefficient, especially when users follow many channels. To improve user experience, I suggest adding an alphabetical scroll bar (similar to what's seen in contact lists or music libraries on Android).

Why do we need this feature?

Faster and more efficient navigation through long subscription lists.

Improved accessibility and usability for users with many subscriptions.

Familiar UX pattern for Android users, making it intuitive to use.

Additional information

This small addition could greatly enhance user navigation and make managing subscriptions more user-friendly, especially for long-time users with extensive lists.

Also see visual reference for development

--> scroll_bar.pdf