Twine: Smart RSS & News Reader

## Features - **Better YouTube Support**: Video posts now show proper high resolution thumbnails, open directly in the YouTube app, and get a dedicated action bar in the reader. - **Smarter Feed Links**: Pasting a Reddit, Mastodon, or YouTube link when adding a feed now resolves it to the right feed automatically, including YouTube handle links. ## Changes - **Themed App Icons**: App icons now match the color schemes, and can be picked right from the appearance settings. - **Smoother Visuals**: Refined gradients and scrims across the home and reader screens, animated post items in the home feed, and a cleaner background blur transition when swiping through featured posts. - **Performance Improvements**: Faster feed parsing with lower memory usage, plus smoother home screen scrolling and image loading. - **Simpler Add Feed**: Removed the feed preference toggles from the add feed screen. - **No Shorts**: YouTube feeds now come from the channel's uploads playlist, so Shorts stay out of your feed. ## Fixes - Fixed feeds that nested media inside items showing only a single post. - Fixed missing images in feeds that put the image URL in the element text. - Fixed full article fetching failing on sites that block browser-like requests. - Fixed reading history not being recorded when posts were marked as read while scrolling or paging through the reader. - Fixed missing channel images for some YouTube feeds. - Added a fallback message when adding a feed fails without a reason.