Update "sort by new" dropdown selector.

Update broken selectors to reflect changes in Reddit's DOM.

Version 1.1.1

1. fix highlight on active tab

Version 1.1.0

1. Break the existing dom, events, constants logic into separate files
2. Completely rewrite events logic
- attach onScroll, onKeyDown, onVisibilityChange unconditionally on mount
- fix onUrlChange mutation observer event and debounce it, await location.href, fixed hasLeftThread condition
- add custom onArrivedToRedditThread event
- replace the existing debounce function with debounceLeading and debounceTrailing from lodash
3. Add retryAndWait function for better awaitng thread loading state

1. Support new Reddit design 2024 (www.reddit.com)
2. Add Immediately checkbox to mark thread as read manually
3. Update Readme.md and add new screenshot
4. Update Chrome manifest v3

Make Enable logger switch reflect immediately, remove blur from select for sort By New.

Fix comment timestamp flicker by improving Date comparison.

Fixed closed popup in new tab.