Improvements

• make links in comments clickable, increase text size
• seek on clicking timestamp links in comments
• show preferred tab based on recently selected state
• add playlist to queue when long clicking on 'Background' in playlist window
• search for shared text when it is not an URL
• add "share at current time" button to the main video player
• add close button to main player when video queue is finished
• add "Play directly in Background" to longpress menu for video list items
• improve English translations for Play/Enqueue commands
• small performance improvements
• remove unused files
• update ExoPlayer to 2.9.6
• add support for Invidious links

Fixed

• fixed scroll w/ comments and related streams disabled
• fixed CheckForNewAppVersionTask being executed when it shouldn't
• fixed youtube subscription import: ignore ones with invalid url and keep ones with empty title
• fix invalid YouTube url: signature tag name is not always "signature" preventing streams from loading