If you wish to edit something in the JavaScript/Sass files, you have to compile them with Laravel Mix.
From your terminal, cd into the laravel-comments directory and install the npm dependencies (Node >= 8.10 required):
With npm:
npm install
Or with yarn:
yarn
After you make your changes run npm run build to compile the assets.
Each time the assets are compiled you have to run php artisan vendor:publish --provider=Hazzard\Comments\CommentsServiceProvider --tag=public --force to override them in your public directory.
Or you edit the webpack.mix.js and change the publicPath variable:
const publicPath = './../public/vendor/comments'
Assuming that you have the laravel-comments folder in your project root directory.
If you wish to customize the views run:
php artisan vendor:publish --provider=Hazzard\Comments\CommentsServiceProvider --tag=views --force
Then edit them from resources/views/vendor/comments.
If you wish to customize the migrations publish them before migrating:
php artisan vendor:publish --provider="Hazzard\Comments\CommentsServiceProvider" --tag=migrations