NEXT-35453 - Improve storefront watcher

[shyim]

Description

• Use Unix socket to communicate with Webpack dev server in hot-mode, reduces one port, simplify
• Use relative paths in listing component, to remove one regex replacing
• Fix scss hot reloading, we need to configure that we have only one runtime chunk and load it

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[github-actions]

	Warnings
⚠️	The Pull Request doesn't contain any changelog file