Move comment-related logic and state from VideoModal.js to CommentsController.js.
Split CommentsController into CommentsController (orchestration), CommentsListRenderer (DOM management), and CommentNodeFactory (element creation) to maintain modularity and adhere to file size limits.
Update VideoModal to initialize and destroy CommentsController correctly.
Fix minor lint issues.
Co-authored-by: PR0M3TH3AN <[email protected]>