Scrolling to mark all articles in feed as read

[parcelcat]

1. Environment

• OS: Android 15
• APP: 0.11.1

2. Describe the feature request

With the "Mark as read on scroll" feature (#585) enabled, it is impossible to mark all of the articles in the feed as read by scrolling, because the scrolling stops when the final article appears at the bottom of the screen. Instead, the user must use the "Mark All as Read" button to mark the remaining articles as read, which is a clunky experience.

There should be additional scrollable whitespace at the bottom of the list to allow the user to scroll all articles in the feed to the top of the screen. This would allow the user to mark all articles in the feed as read solely through scrolling.