Hi there,
You have to changes in the (product-card.vue) file and run the following commands
in packages/Webkul/Velocity
npm i
npm run watch
( in development) in packages/Webkul/Velocity
npm run prod
( in production ) in packages/Webkul/Velocity
after all the changes run below command in root directory and publish the module
php artisan vendor:publish --force