Fixed

• bugs in the Votes model (has_many :votes, dependent: :destroy move to User model ).

Added new feature:

• The title of the vote button changes depending on user actions: up_vote(down_vote) -> undo_vote -> up_vote(down_vote). Title change usually only for current users (Stimulus controller);
• Unauthenticated users cannot vote on a comment (Stimulus controller );
• The user who voted will receive a flash message with information;
• Added the ability for the author of a comment to delete it (Stimulus controller);
• Hotwire flash messages (lTailwind style);
• Autohide and manual closing of Hotwire flash messages (Bootstrap JS and Stimulus controller);
• Comments counter that changes dynamically after adding/removing objects (broadcasts html).
• Counter votes, rewritten only on broadcasts HTML parts;
• Small refactoring code